WASHINGTON -- With the Supreme Court's landmark health care ruling in the books, a main Obamacare architect weighed in Sunday on the possibility of its legislative undoing.
Rep. Henry Waxman (D-Calif.) appeared on C-SPAN's Newsmakers on Sunday, offering some insights into whether the GOP can execute a repeal effort.
The short answer? Yes.
"I think they could do it," Waxman said. "I think the American people have to understand that. If they vote for Romney and they vote for the Republicans to have control of the House and the Senate, there's a good chance that the health care bill will be wiped out, and all of these benefits will be wiped out."
Waxman's remarks contrasted with those of House Minority Leader Nancy Pelosi, who told NBC's Meet The Press that an effort to repeal the initiative would be "unrealistic."
Republicans "will ask for repeal, repeal of all the things ... that help children, help young adults, help seniors, help men or women who may have prostate cancer, breast cancer, whatever it is, any precondition," Pelosi said. "And everybody will have lower rates, better quality care and better access."
Hours after the court stamped its 5-4 decision in favor of upholding the Affordable Care Act, Obama praised the Judicial Branch's move as "a victory for people all over this country."
"The highest court in the land has now spoken. We will continue to implement this law," he added. "With today's announcement it is time for us to move forward, to implement and when necessary improve on this law."
GOP rival Mitt Romney responded with a different tone, vowing to erase Obama's signature effort if elected to office.
"What the court did not do on its last day in session, I will do on my first day if elected president of the United States, and that is I will act to repeal Obamacare," Romney said.
Former President Theodore Roosevelt champions national health insurance as he unsuccessfully tries to ride his progressive Bull Moose Party back to the White House. (Photo by Topical Press Agency/Getty Images)
President Franklin D. Roosevelt favors creating national health insurance amid the Great Depression but decides to push for Social Security first. (Photo by Keystone/Getty Images)
Roosevelt establishes wage and price controls during World War II. Businesses can't attract workers with higher pay so they compete through added benefits, including health insurance, which grows into a workplace perk. (Photo by Hulton Archive/Getty Images)
President Harry Truman calls on Congress to create a national insurance program for those who pay voluntary fees. The American Medical Association denounces the idea as "socialized medicine" and it goes nowhere. (Photo by Keystone/Getty Images)
John F. Kennedy makes health care a major campaign issue but as president can't get a plan for the elderly through Congress. (Photo by Keystone/Getty Images)
President Lyndon B. Johnson's legendary arm-twisting and a Congress dominated by his fellow Democrats lead to creation of two landmark government health programs: Medicare for the elderly and Medicaid for the poor. (AFP/AFP/Getty Images)
President Richard Nixon wants to require employers to cover their workers and create federal subsidies to help everyone else buy private insurance. The Watergate scandal intervenes. (Photo by Keystone/Getty Images)
President Jimmy Carter pushes a mandatory national health plan, but economic recession helps push it aside. (Photo by Central Press/Getty Images)
President Ronald Reagan signs COBRA, a requirement that employers let former workers stay on the company health plan for 18 months after leaving a job, with workers bearing the cost. (MIKE SARGENT/AFP/Getty Images)
Congress expands Medicare by adding a prescription drug benefit and catastrophic care coverage. It doesn't last long. Barraged by protests from older Americans upset about paying a tax to finance the additional coverage, Congress repeals the law the next year. (TIM SLOAN/AFP/Getty Images)
President Bill Clinton puts first lady Hillary Rodham Clinton in charge of developing what becomes a 1,300-page plan for universal coverage. It requires businesses to cover their workers and mandates that everyone have health insurance. The plan meets Republican opposition, divides Democrats and comes under a firestorm of lobbying from businesses and the health care industry. It dies in the Senate. (PAUL J. RICHARDS/AFP/Getty Images)
Clinton signs bipartisan legislation creating a state-federal program to provide coverage for millions of children in families of modest means whose incomes are too high to qualify for Medicaid. (JAMAL A. WILSON/AFP/Getty Images)
President George W. Bush persuades Congress to add prescription drug coverage to Medicare in a major expansion of the program for older people. (STEPHEN JAFFE/AFP/Getty Images)
Hillary Rodham Clinton promotes a sweeping health care plan in her bid for the Democratic presidential nomination. She loses to Obama, who has a less comprehensive plan. (PAUL RICHARDS/AFP/Getty Images)
President Barack Obama and the Democratic-controlled Congress spend an intense year ironing out legislation to require most companies to cover their workers; mandate that everyone have coverage or pay a fine; require insurance companies to accept all comers, regardless of any pre-existing conditions; and assist people who can't afford insurance. (Alex Wong/Getty Images)
With no Republican support, Congress passes the measure, designed to extend health care coverage to more than 30 million uninsured people. Republican opponents scorned the law as "Obamacare." (Mark Wilson/Getty Images)
On a campaign tour in the Midwest, Obama himself embraces the term "Obamacare" and says the law shows "I do care." (BRENDAN SMIALOWSKI/AFP/Getty Images)