As the conservatives in the Tea Party movement gained strength, the liberal media often predicted they would cause harm to the Republican Party and drive out all the moderates. Wouldn't the conservatives look too extreme to win over voters? (See Rich Noyes for more.)
Now that the MoveOn.org leftists are poised to remove an incumbent Senator or two, they might spread the idea that there is also a strong ideological base in the Democratic party -- on the left. But the media rarely mourn that they're driving all out the moderate Democrats in their quest for ideological perfection, and they rarely even whisper that the leftist base will make the Democrats look too extreme to the electorate. Notice the tone of Chuck Todd's piece for Monday's Today, and let's throw in that the graphic on screen only said the trend was "anti-Washington anger." The words "liberal" or "on the left" are not spoken:


Most Republicans likely already think Sen. Arlen Specter (D-Penn.) is a joke, and Thursday evening he proved it when he took the stage at a Pittsburgh comedy club.
At the top of the 8:00AM ET hour of Wednesday’s Early Show, co-host Russ Mitchell cited protests at health care reform town hall meetings as evidence that the debate was "turning into a nasty national shouting match."
During a segment on Tuesday’s Newsroom program, CNN anchor Rick Sanchez and correspondent Ali Velshi bizarrely agreed that the issues of illegal immigration and abortion, as well as the constitutionality of the ObamaCare proposal, had little to do the health care debate, after citizens raised those issues at a health care town hall with Senator Arlen Specter.
On August 14, some of the nation's most prominent conservatives will be gathering in Pittsburgh, Pennsylvania, but former Republican Senator Arlen Specter (D-Penn.) won't be there.
When Sen. Arlen Specter ran in a contentious primary against conservative congressman Pat Toomey in 2004, his slogan was "Courage, Clout, Conviction." The other day, when Specter’s pollster apparently told him he was going to lose to Toomey in a rematch, he promptly chucked that blather about his courage and conviction and narrowed his thinking to clout. In desperation, he switched to the Democratic Party.