Democrat Tom Harkin: Change Senate Rules on Filibusters for Legislation Next

Might opponents have to try an actual filibuster to thwart Senate Democrats?

After the Senate voted to change filibuster rules Thursday, Sen. Tom Harkin (D-Iowa) called for more reforms.

"This has been escalating for a long period of time and it was time to stop it and that's what we did this morning," Harkin said. "Now we need to take it a step farther and change the filibuster rules on legislation."