DONALD WHO?:

Vice President Mike Pence has quietly spent his weekends visiting key battleground states, raising eyebrows in political circles about just what the ambitious politician is up to as scandals threaten Donald Trump's presidency.

Last weekend provides a glaring -- and fascinating -- example. The former Indiana congressman and governor returned to the Hoosier State to deliver the commencement address at Notre Dame. But his route back home included stops in two perennial presidential battlegrounds: Pennsylvania and Ohio.

And those stops -- which followed other weekend travel through swing states and light red counties -- came just days after Pence shocked the political set by establishing his own political action committee.

The Pennsylvania and Ohio appearances also came after a whirlwind week that featured bombshell after bombshell about the president allegedly interfering with a federal investigation into possible ties between his campaign and Russian officials. As Pence's office finalized weekend travel plans, by midweek, talk of impeachment had quickly gone from extreme to mainstream.

White House officials on Friday were reportedly conducting research on just how the House would run impeachment proceedings. The next day, Pence flew first to Grove City, Pennsylvania, where he delivered remarks at a community college. From there, he took Air Force Two to Dayton, Ohio, where he addressed military personnel at Wright-Patterson Air Force Base.

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