Here's what the Republican and Democratic presidential contenders will be up to during President Barack Obama's final State of the Union.
These two senators will be listening to Obama tonight in person. Rubio has taken heavy criticism from Republican competitors for missing Senate business during his campaign for president -- he is also scheduled to attend a high-powered fundraiser in Washington just before the speech at 6 p.m., according to an invitation obtained by CNN, which will feature many members of Congress.
The Kentucky senator will not be in Washington to see Obama's speech as previously planned, according to senior campaign aide Sergio Gor. He will instead be in New York City.
Cruz is campaigning today in New Hampshire, but the Texas senator isn't planning to skip the news of the day entirely. His evening event in a high school cafeteria in Londonderry is billed as a "The State of Our Union Town Hall" and he is scheduled to respond to the speech on NBC following Obama's speech.
Trump has a rally on Tuesday evening in Cedar Falls, Iowa, beginning at 7 p.m. ET, two hours ahead of Obama's speech.
Bush has the busiest schedule of any of the candidates on Tuesday evening -- he'll have two back-to-back town halls in Ankeny and Coralville, Iowa.
Huckabee has staked his campaign on a better-than-expected performance in Iowa, and he has plotted 150 events in the Hawkeye State over the month of January. The former Arkansas governor will drop into Jenny's Diner in Clinton, Iowa, as Washington prepares for the big event.
Santorum, who won the Iowa caucuses four years after Huckabee did, will be the "special guest" at a Robins, Iowa, house party.
Fiorina has an event Tuesday evening at the State Historical Building of Iowa in Des Moines.
Hillary Clinton, John Kasich
Clinton and Kasich both had campaign events earlier on Tuesday -- Clinton in Iowa and Kasich in Nevada -- but neither appear to have events on Tuesday evening when the President speaks.