By NBC's Carrie Dann

WASHINGTON -- Rep. Ron Paul, a favorite of libertarian-leaning Republicans and young activists, has won another straw poll.

Paul received 37 percent of the vote in the Values Voter Summit straw poll Saturday at the annual gathering of conservative religious voters in Washington.

Pizza magnate Herman Cain, who gave a rousing speech at the confab yesterday, came in second with 23 percent. Former Sen. Rick Santorum, who - along with his family - spent additional hours milling around the conference grounds to speak one-on-one with voters, won 16 percent.

Tied at fourth place were Gov. Rick Perry and Rep. Michele Bachmann, who each received eight percent of the vote.

Gov. Mitt Romney, the presumed national frontrunner in the race whose Mormon faith had been conspicuously raised by two of the event's evangelical speakers, came in fifth at four percent of the vote.

Straw pollers also asked attendees at the conference who they favor as their eventual nominee's vice presidential pick. The top four in that category were: Bachmann, Cain, Florida Sen. Marco Rubio, and Santorum.