RACINE, Wis. -- Authorities who investigated allegations of voter fraud in a Wisconsin Senate recall election that went to a recount say they've found no evidence of criminal activity.

The Racine County Sheriff's Department and prosecutor's office spent a month looking into the claims. Complaints included the discovery of voter-registration documents in a garbage can and allegations that absentee ballots were mishandled.

The complaints arose after Republican state Sen. Van Wanggaard (WAHN'-gard) lost a recall election last month to Democratic challenger John Lehman.

Also on HuffPost:

Loading Slideshow...
  • Let's Get It On: Wave Election Sweeps In Conservatives

    In 2010, a surge of Tea Party momentum and backlash against Democrats helped elect conservatives including Wisconsin Gov. Scott Walker, who <a href="http://www.washingtonpost.com/wp-dyn/content/article/2010/11/02/AR2010110208185.html" target="_hplink">became the state's first Republican governor since 2002</a>. Walker promised to cut taxes and create 250,000 new jobs, but <a href="http://www.washingtonpost.com/wp-dyn/content/article/2011/02/19/AR2011021904205.html" target="_hplink">a deeper look into his past</a> also showed a politician who had inflamed tensions with unions before.

  • Welcome To The Jungle: Clashes With Unions

    After taking office, Walker <a href="http://www.reuters.com/article/2011/02/11/us-wisconsin-budget-unions-idUSTRE71A7FP20110211" target="_hplink">announced a number of controversial proposals</a>, including eliminating collective bargaining rights for state employees and reducing public employee benefits. <a href="http://www.wuwm.com/news/wuwm_news.php?articleid=7768" target="_hplink">He said the reforms were necessary </a>to prevent thousands of layoffs. Facing anger from unions, <a href="http://www.huffingtonpost.com/2011/02/11/scott-walker-unions-wisconsin-national-guard_n_822225.html" target="_hplink">Walker threatened</a> to mobilize the state's National Guard in response to any disruptions. The announcement <a href="http://www.huffingtonpost.com/2011/02/16/wisconsin-governor-scott-walker-backlash-public-workers_n_823901.html" target="_hplink">was met with backlash</a> across the state.

  • Hush: Wisconsin Bans Collective Bargaining

    The fight over Walker's proposed budget was contentious, <a href="http://www.huffingtonpost.com/2011/02/20/wisconsin-democratic-senators-illinois_n_825748.html" target="_hplink">with Wisconsin Democratic state senators crossing state lines </a>to Rockford, Ill. in an attempt to stall the vote. In March 2011, Walker signed the budget, significantly <a href="http://www.usatoday.com/news/nation/2011-03-12-wisconsin-law-analysis_N.htm" target="_hplink">curtailing collective bargaining rights</a> for union-affiliated public employees. Thousands of protesters <a href="http://www.huffingtonpost.com/2011/02/16/wisconsin-budget-protests_n_824213.html" target="_hplink">gathered in Madison</a>, and labor leaders and Democrats <a href="http://www.huffingtonpost.com/2011/03/11/scott-walker-signs-wiscon_n_834508.html" target="_hplink">vowed to fight back</a>.

  • We're Not Gonna Take It: Foes Organize

    In the months following his signing of the bill, Walker's opponents organized, announcing their intention to recall the governor and his supporters. They <a href="http://www.huffingtonpost.com/2011/06/05/wisconsin-protesters-walkerville-tent-capitol-scott-walker-budget_n_871523.html" target="_hplink">erected a tent city</a> and believed they'd <a href="http://www.huffingtonpost.com/2011/04/07/scott-walker-wisconsin-election-supreme-court_n_846042.html" target="_hplink">won a surprise victory over</a> a conservative state supreme court judge, before amended voting totals from one county reversed the victory. Walker <a href="http://www.huffingtonpost.com/2011/07/16/scott-walker-mistakes-policies_n_900820.html" target="_hplink">continued to defend his policy </a>but said he had made mistakes in the political execution.

  • Fake Empire: State Senators Face Recall

    Wisconsin Democrats scored a victory in their attempt to unseat Republican state legislators when they defeated six "fake" Democrats <a href="http://www.huffingtonpost.com/2011/07/14/scott-walker-recall-_n_898116.html" target="_hplink">running in the party's primaries</a>. Four of the six Republicans targeted for recall <a href="http://www.huffingtonpost.com/2011/08/12/scott-walker-wisconsin-recall-election_n_925331.html" target="_hplink">held onto their seats</a> in the general election.

  • Let's Get It Started: Recall Effort Makes Ballot

    Petitions to recall Walker and his lieutenant governor <a href="http://www.huffingtonpost.com/2012/02/27/scott-walker-recall-signatures-wisconsin-governor_n_1304091.html" target="_hplink">gathered nearly a million signatures</a> each, far exceeding the 500,000 needed. Election officials <a href="http://www.huffingtonpost.com/2012/03/29/scott-walker-recall-wisconsin-election-signatures_n_1389229.html" target="_hplink">ordered a recall election</a>.

  • Us Against The World: The Fight Moves Forward

    Democratic candidates faced tough odds from the start. In an April 2012 report, HuffPost's Amanda Terkel <a href="http://www.huffingtonpost.com/2012/04/04/scott-walker-recall_n_1401143.html" target="_hplink">noted</a> that only two sitting governors had been recalled in U.S. history. Four Democratic candidates competed in the May primary, headed by former Dane County executive Kathleen Falk and Milwaukee Mayor Tom Barrett.

  • Better Man: Tom Barrett Wins Primary

    After a tough primary, <a href="http://www.huffingtonpost.com/2012/05/08/tom-barrett-wisconsin-recall-primary-scott-walker_n_1501568.html" target="_hplink">Milwaukee Mayor Tom Barrett</a> bested three other Democratic candidates in an early May primary. Barrett's victory set up a rematch with Gov. Walker, whom he lost to by about five percentage points in the 2010 race.

  • Don't Stand So Close To Me: Walker, Barrett Neck And Neck

    Less than 48 hours before the recall, Public Policy Polling (PPP) released a final poll, showing <a href="http://www.huffingtonpost.com/2012/06/03/wisconsin-polls-scott-walker-recall-tom-barrett_n_1566788.html?ref=politics" target="_hplink">Walker with a narrow lead</a> over his Democratic challenger, Milwaukee Mayor Tom Barrett. <a href="http://www.publicpolicypolling.com/main/2012/06/walker-leads-by-3-points.html" target="_hplink">PPP</a>, a firm affiliated with the Democratic Party, compiled a final poll showing Walker at 50 percent support, three percentage points ahead of Barrett's 47 percent.

  • The Man Who Can't Be Moved: He Survives

    After a whirlwind day of voting that featured <a href="http://www.huffingtonpost.com/2012/06/05/wisconsin-recall-overwhelming-turnout_n_1572386.html" target="_hplink">swarmed polling places</a> around the state, media outlets <a href="https://twitter.com/mpoindc/status/210186998009434112" target="_hplink">called the race for Walker</a> less than an hour after polls closed. Full election results <a href="http://elections.huffingtonpost.com/2012/wisconsin-recall-results" target="_hplink">here</a>.