Obama's campaign pushed back with the hashtag #StrongerWithObama, which was nationally trending about halfway through the debate.
Twitter is tracking the hashtags #debates and #lynndebate, and the latter as well as other variations continue to trend even as conversation about baseball ebbs and flows. Analytics from Topsy gathered by Twitter also shows rising interest on the microblogging service in foreign policy topics, particularly Benghazi.
The National Defense Authorization Act (NDAA) is also having a moment on Twitter, likely raising the profile of the military funding bill for thousands of Americans tuning into the presidential debate while simultaneously monitoring Twitter.
The group Stop NDAA asked Twitter users to get the hashtag trending during Monday night's final presidential debate, which is focused on foreign policy.
They achieved their goal with some help from Anonymous, the hacker activist group.
Updated at 9:55 p.m.