Bill Clinton Says He's Leaving It 'All on the Floor' in Iowa The former president was campaigning for his wife.

 -- In the final sprint before the Iowa Caucuses, President Bill Clinton said it "feels good" in Iowa as he and Hillary Clinton campaign hard in the last push before Monday.

"You just want to know you left it all on the floor, and I think we did," the former president told ABC News.

"We've had a chance to get her message out. I feel good about it but you don't know what's going to happen," Bill Clinton said, noting Iowa's history of unpredictability when it comes to choosing who wins the state's caucuses.

Following a campaign event at a college in Grinnell, Iowa, today, the former president greeted supporters mentioning his fond memories in Iowa both while he was campaigning for his own presidential bid and also for his wife's eight years ago. ABC News caught up with the president immediately following his speech asking him if Iowa feels any different than it did eight years ago when Hillary Clinton first ran.

"It feels good, I mean you never know what's going to happen here, but it feels good," the former president said. "First of all she's got so many wonderful young people working for her in all these communities. And I think she's done a really good job. She's made a serious commitment to Iowa."

Today's highly anticipated Des Moines Register/Bloomberg Politics poll shows Hillary Clinton and Bernie Sanders neck-and-neck within the margin of error as the two Democratic presidential hopefuls blitz The Hawkeye State in the final days before Caucus. This latest poll, which took place January 26-29, has Clinton ahead of Sanders by only 3 points. Clinton held a 2-point lead over Sanders in the last Des Moines Register poll taken on January 14.

The former president had two solo campaign events today in Iowa before joining his wife, presidential hopeful Hillary Clinton and their daughter Chelsea Clinton later tonight. At his first campaign stop in Iowa Falls, faithful Clinton fans turned out, but at his Grinnell, Iowa, event at Grinnell College, the room was mostly comprised of students. According to poll numbers, this demographic has embraced Sen. Bernie Sanders' message of income equality and free college tuition.

A Hillary Clinton campaign staffer told ABC News this was the youngest crowd they have seen at any of the president's events.

Bill Clinton will continue stumping his way through Iowa and New Hampshire in the coming days, and his team announced today that the president will also shift his efforts to South Carolina next week.