Democratic Senators and threats from the radical religious right

I am reading from Wikipedia:

"On January 1, 2005, newspapers reported that Evangelical leader James C. Dobson was telling Democratic senators that he would prevent their reelections in 2006 if they blocked conservative appointees to the U.S. Supreme Court. He singled out six Democrats up for re-election [in 2006]: Ben Nelson of Nebraska, Mark Dayton of Minnesota, Robert Byrd of West Virginia, Kent Conrad of North Dakota, Jeff Bingaman of New Mexico and Bill Nelson of Florida." In 2004, Dobson played an important role in the 2004 defeat of then-Senate Minority Leader Tom Daschle".

So, is that why Ben Nelson from Nebraska said he will vote for Alito? Because the radical clerics of the right have threatened that they will block his re-election? That's shameful.