When Donald Trump announced last summer that he was running for president, he didn't expect to be leading the polls a day ahead of the Iowa caucus, the real estate mogul said this morning on ABC's "This Week."Asked by “This Week” anchor George Stephanopoulos, “Did you ever imagine then that on the eve of the Iowa caucuses, you'd be leading -- leading pretty big in every state?” Trump responded, “The truth is, no, I didn't.”ABC News

The Iowa Poll, published Saturday by The Des Moines Register and Bloomberg, said Republican real estate mogul Donald Trump has the support of 28 perfect of likely caucus goers, with Texas Sen. Ted Cruz at 23 percent and Florida Sen. Marco Rubio at 15 percent.On the Democratic side, the survey finds former Secretary of State Hillary Clinton with 45 percent support to Vermont Sen. Bernie Sanders' 42 percent.Both candidates see an increase in support, with Clinton up by three percentage points since early January and Sanders up by two. Clinton leads among voters who say they are certain to caucus, and Sanders has an edge with voters who said they would probably caucus.CBS News