Returning to her Alma mater, Cynthia Nixon joined picketing Columbia Graduate students who are looking to form a union but claim the university has denied them that right.

Nixon also revisited comments she made recently claiming the film television tax credit approved by Gov. Andrew Cuomo "doesn't merit the investment."

"My position is that we need to examine it," Nixon said. "I have no interest in getting rid of the film and tax credits. I am a person who has made my career here for 40 years — I'd say since 1979."

Nixon also released a video Monday in which she received the endorsement of Brooklyn City Councilman Carlos Menchaca over her support for driver's licenses for undocumented immigrants.

"Fixing this was important before Donald Trump," Nixon said in the announcement. "But with him in office and his immigration agents using minor traffic violations to justify picking up immigrants, now it's a crisis."

Cuomo had no public events Monday, but it was a tweet from his top aide, Melissa DeRosa, that stirred controversy.

On Tuesday, a panel is slated to convene at Cooper Union to discuss women in state government. It includes the president of the Brooklyn NAACP L. Joy Williams, former gubernatorial candidate Zephyr Teachout, and former City Council Speaker Melissa Mark-Viverito. Williams announced on Monday that she's joining the Nixon campaign as an adviser.

Seemingly unprovoked, DeRosa tweeted:

In a few other developments, Nixon said she will release the extension she filed for her personal income taxes this week. And in Albany, Republican Senate Majority Leader John Flanagan accused Cuomo of writing off the last two months of the legislative session when there is more work to be done. Cuomo said last week that nothing will be accomplished in these final weeks.