One week after the primary polls closed, Republicans remain split over who to support in the lieutenant governor’s race. Sen. Dan Patrick soared passed incumbent Lt. Gov. David Dewhurst, surprising pundits and forcing the race into a runoff.

In Tuesday’s Capital Tonight, we looked at where support is coming from for both candidates. Plus, we spoke to Sen. Leticia Van de Putte about how a contentious runoff race could affect her campaign.

CAPITAL COMMENTATORS

Sen. Wendy Davis’ campaign is bringing in some outside help to lead the communications team. We talked to Democratic strategist Harold Cook and Republican strategist Ted Delisi about that change, along with new lines of attack between the Davis and Greg Abbott campaigns.

ENROLLMENT UPDATE

Federal officials say more than four million people have signed up for health insurance through the online exchange since October, but the White House still needs more young people to sign up in order for the Affordable Care Act to work as planned.

A new video from comedian Zach Galifianakis might help in that effort. The fake community access interview with the president has gotten more than six million views so far, and White House officials say it’s driving record traffic to the healthcare.gov website.