Mitt Romney returns to Iowa today, while President Obama is back in Washington for a string of White House meetings.

View Photo Gallery: With the Republican presidential nomination essentially assured after Ron Paul said he would suspend campaigning on Monday, former Massachusetts governor Mitt Romney steps up his criticism of President Obama.

Here’s your look at the candidates’ schedules for Tuesday, May 15, primary day in Nebraska and Oregon. (Times are Eastern)

Mitt Romney

3:05 p.m. Romney speaks at a campaign event in Des Moines. Follow @NiaWapo on Twitter for updates from Romney’s trip

President Obama

10:55 a.m.Obama delivers remarks at the National Peace Officers Memorial Service.

2:15 p.m. Obama welcomes Major League Soccer champions, the Los Angeles Galaxy, to the White House.

3:30 p.m. Obama and Vice President Joe Biden meet with Secretary of the Treasury Timothy F. Geithner.

4:30 p.m. Obama and Biden meet with Secretary of Defense Leon Panetta.

5:30 p.m. Obama and Biden meet with the combatant commanders.

7:00 p.m. The president and first lady host a dinner for the combatant commanders and their spouses at the White House

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