Organizing for Action, the non-profit established last fall to support President Obama's legislative agenda, has waded into a fight over abortion legislation in Texas.

Using the Twitter account that Obama used during the campaign and handed over to OFA after winning reelection, the organization asked its 33 million followers to stand with Wendy Davis during her marathon filibuster of legislation that would have closed nearly every abortion clinic in the state. (Amid protests, the bill missed its midnight deadline.)

Obama has not weighed in on the situation personally. Although he does still use the BarackObama Twitter account on occasion, tweets from the president himself are signed "-bo."

Senate Majority Leader Harry Reid (D-Nev.) did comment, though, with a joke about his own battles against Republican filibusters.

So did Sen. Claire McCaskill (D-Mo.):