After the late-night suspense over the identity of Sen. Barack Obama’s running mate was broken, GOP Sen. John McCain’s campaign wasted no time taking the Obama-Biden ticket to task.

By Saturday morning, the McCain team had a new video ad up on its Web site entitled “Biden” that shows the Delaware senator criticizing Obama’s lack of experience during an August 2007 Democratic primary debate and praising McCain’s credentials in a clip from Comedy Central’s “The Daily Show.”

McCain spokesman Ben Porritt also issued a statement in the hours immediately after news of the Biden pick emerged:

“There has been no harsher critic of Barack Obama’s lack of experience than Joe Biden. Biden has denounced Barack Obama’s poor foreign policy judgment and has strongly argued in his own words what Americans are quickly realizing — that Barack Obama is not ready to be President,” the statement read.

McCain and Biden are long-time Senate colleagues — with ties that run deep enough that McCain called Biden on Saturday to congratulate his advance to the ticket.

Of the phone call, McCain campaign spokesman Tucker Bounds said: “It was a brief conversation. They’ve known each other for years.”