Obama in Iowa, Romney in Colorado, plus more to watch for Tuesday in politics

— -- President Barack Obama will be in the battleground state of Iowa on Tuesday. His message: Congress should extend the Bush tax cuts for households earning less than $250,000. He'll also talk about the economy, the deficit and jobs.

Obama won Iowa in the 2008 election. An NBC News/Marist poll released in late May showed Obama and Mitt Romney in a dead heat in Iowa — 44 percent to 44 percent. However, respondents gave Romney a 46 percent to 41 percent edge on who would best handle the economy, and, when asked who would do a better job of reducing the national debt, they gave Romney a 52 percent to 34 percent solid advantage over Obama.

Romney holds "Town Hall with Mitt Romney and the Republican Team" in Junction, Colo., on Tuesday. He is expected to focus on energy policy, but he might also have something to say about questions raised recently by Democrats about his wealth. And Obama's tax-cut plan is likely to come up, too.

On Capitol Hill, the House begins debate on the latest effort to repeal the health care reform law. A vote is expected Wednesday. Although the measure can be expected to get through the Republican-controlled House, it cannot be expected to clear the Democratic-controlled Senate.

Also worth noting: Vice President Joe Biden speaks Tuesday at the National Council of La Raza Annual Conference and then heads to a fundraiser in Utah, first lady Michelle Obama campaigns in Florida, and Sen. Mike Lee campaigns for Romney in Ohio.

And then there is this: Rick Santorum returns to Iowa on Tuesday for the first time since his caucus victory over Romney by only 34 votes. Santorum, who visited all 99 Iowa counties before the caucus, will hold a thank you meet and greet BBQ luncheon in Iowa City.

Sources: Yahoo! News, ABC News, Associated Press