On this Thursday's new episode of FlashForward, Mark testifies before a Senate committee.

This creates problems for both himself and his wife, as the former is forced to defend himself in front of inquisitive, doubtful senators; while the latter is concerned about her husband's state of mind.

In the following clip, Mark squirms and stammers at his hearing:

[video url="http://www.tvfanatic.com/videos/questioning-mark/" title="Questioning Mark"] [/video]

Meanwhile, after this jump, watch Olivia press Aaron about Mark's sobriety. Might his trip to DC force him off the wagon?

[video url="http://www.tvfanatic.com/videos/gimme-some-truth-clip/" title="Gimme Some Truth Clip"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.