Toomey makes Twitter appearance

Pennsylvania Republican Senate candidate Pat Toomey made his first appearance on Twitter after his newly-minted Democratic opponent, Sen. Arlen Specter, announced his decision to switch parties Tuesday.

Toomey -- employing a "Specter" hash tag on his tweet, no less -- asked for donations in a posting:
Please consider donating to our campaign http://bit.ly/AtKGU #tcot #specter #pasen