Toomey's now on Twitter

Taking a page from his primary campaign opponent, Sen. Arlen Specter (R), former Club for Growth Chairman Pat Toomey joined Twitter on Wednesday after launching his campaign.

Toomey established his feed this morning, after formally announcing his long-expected challenge to Specter.

The feed has been mostly a litany of announcements of interviews, unlike Specter's, which has often been used to launch attacks on Toomey.