Obama meets with Chinese president, Romney wraps up bus tour in Michigan, plus more to watch for Tuesday in politics

— -- President Barack Obama wraps up the two-day G20 Summit in Los Cabos, Mexico, with a private meeting with Chinese President Hu Jintao and a late afternoon press conference. Obama met with Russian President Vladimir Putin on Monday and reported that the two agree on the need for a political transition in Syria to prevent an all-out "civil war."

Mitt Romney ends his "Believe in America: Every Town Counts" bus tour with stops in his home state of Michigan, a battleground state he says he thinks he can win. His five-day, six-state tour also included New Hampshire, Pennsylvania, Ohio, Wisconsin and Iowa. [Get more updates from Romney's bus tour by following @hollybdc on Twitter]

Vice President Joe Biden will be in California where he will address the American Federation of State, County and Municipal Employees 40th Annual International Convention in Los Angeles. After that, he'll head to a campaign event in Sacramento.

Back at the White House, first lady Michelle Obama will meet with campaign volunteers from the Henderson, Nev., area.

And then there is this: U.S. Attorney General Eric Holder is expected to meet with Rep. Darrell Issa, chairman of the House Oversight and Government Reform Committee. The topic: Issa's demand for more documents relating to "Operation Fast and Furious" and a possible contempt vote.

And this: The Federal Reserve's policy-making committee meets Tuesday and Wednesday to decide whether the economy needs more help. Fed chairman Ben Bernanke will discuss what the committee decided at a news conference Wednesday afternoon.

Sources: Yahoo! News, Associated Press, CNN, The New York Times.