The White House party crashers ought to face serious punishment for misleading the Secret Service, two senators said on Sunday morning.

"It's not a laughing matter that people could get that closer to the president," Sen. Evan Bayh (D-Ind.) said on Fox News Sunday.

"You've got to send a strong deterrent that people just don't do this kind of thing."

The second ranking Republican in the Senate concurred.

"If its a federal crime to lie to a federal agent and these people didn't tell the truth about their invitation, then they should in some way be brought to justice here," said Sen. Jon Kyl (R-Ariz.)

Kyl said he didn't think a congressional investigation was warranted, however.

"I suspect the Secret Service is embarrassed enough to fix the problem," he said.