Mitt Romney added former rival Rick Santorum to his endorsement count Monday night, while the White House and Obama campaign continued to defend the president’s “evolving” position on gay marriage.

Here’s a look at where the candidates will spend Tuesday:

According to the White House press office, Obama will tour the State University of New York-Albany Nano-Tech Complex at 12:10 p.m. and deliver remarks on the economy there at 1:25 p.m. He will return to D.C. in to time to give the keynote address at the Asian Pacific American Institute for Congressional Studies Annual Gala Dinner.

Romney’s only scheduled event is a 12:35 p.m. campaign event in Lansing, Mich.

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