Tuesday in politics: Romney campaigns in Illinois, and more

— -- Mitt Romney is back campaigning Tuesday after a day of private meetings at his vacation home in New Hampshire. He'll be in President Barack Obama's home state of Illinois.

Meanwhile, in Washington, Obama will meet in the afternoon with the White House Rural Council to discuss ongoing drought response efforts, and he'll end the day with two campaign events down the street from the White House at The W Hotel.

There are primaries Tuesday in Missouri and Michigan. The race to watch is in The Show Me State. That's where wealthy businessman John Brunner, Rep. Todd Akin and former state treasurer Sarah Steelman face off in the Republican Senate primary. Unlike recent elections such as the Senate primary in Texas, there isn't a clear tea-party-backed candidate in this race. The winner will face Democratic Sen. Claire McCaskill this fall.

And then there is this — for a dose of history: Tuesday is the 100th anniversary of The Progressive Party, aka "Bull Moose Party," nominating Theodore Roosevelt for president. The party got the nickname from Roosevelt telling reporters, "I'm as fit as bull moose." Democrat Woodrow Wilson won the 1912 election.

Sources: Yahoo! News reporter Rachel Rose Hartman, Associated Press