[Interesting Times]

This is common Congressional behavior. The party members who are in districts with large percentages of opposition party voters are allowed to vote against their party when it doesn't affect the outcome.

Nothing to get excited about.

The question now is why Maine Republicans should bother to vote for her.

[Republican Wildcat]

Because she’s a placeholder that keeps Schumer from being the majority leader...and occasionally she has been the difference maker in getting key legislation passed - like tax reform and confirming Kavanaugh. This time her vote probably isn’t needed so she can freely play her “independent” card to Maine’s voters.

[Jeff Chandler]

The question now is why Maine Republicans should bother to vote for her.

They're probably the old school Rockefeller type.