Polls close at 7 p.m. EDT today for South Carolina’s 1
st 
District special election between former Gov. Mark Sanford and Democratic nominee Elizabeth Colbert Busch. Keep an eye on Roll Call tonight to see if Sanford pulled off his comeback bid.

But in the mean time, here’s what you may have missed “At the Races” on Tuesday …

• #GASEN: Rep. John Barrow, D-Ga., will not run for the state’s open Senate seat, and now Democrats must continue their search for a Peach State recruit. All eyes are on Democrat Michelle Nunn, daughter of former Sen. Sam Nunn and the CEO of Points of Light, a volunteer organization.
• #HISEN: EMILY’s List endorsed Hawaii Rep. Colleen Hanabusa in the Aloha State’s Democratic primary for Senate in 2014. Hanabusa will face Sen. Brian Schatz, who was appointed to fill the vacancy after Sen. Daniel K. Inouye died last year.
• #IASEN: Former U.S. Attorney Matt Whitaker became the first Republican to announce that he will run for Iowa’s open Senate seat on Tuesday.
• #FL18: Republican Juno Beach Vice Mayor Pro Tem Ellen Andel announced she is challenging freshman Democratic Rep. Patrick Murphy in 2014.

What we’re mulling on Tuesday …

• Georgia Republican Rep. Jack Kingston’s Senate campaign claimed on Monday that it had set a fundraising record for a single event held in Savannah. Some follow-up sleuthing by Kingston’s rivals and Georgia Tipsheet found evidence to the contrary.