03/28/2008 02:45 am ET | Updated May 25, 2011

Hillary Continues To Ratchet Up Rhetoric Against Obama

Hillary Rodham Clinton suggested Monday that Barack Obama has too little experience and perhaps too much ambition, pressing an increasingly aggressive campaign against her chief rival for the Democratic presidential nomination.

Both candidates were in Iowa, one month before the nation's leadoff caucuses with new polls showing Obama had whittled away her early lead and they were virtually tied among Democrats in the state.