For Sutton, winning another term will require defeating Rep. Jim Renacci (R-Ohio), whose district she has vowed to run in after her own Democratic district was dismantled during a GOP-controlled redraw of Ohio’s congressional map.

Barrow, one of the last remaining Blue Dogs in the House, saw Democratic voters siphoned out of his Georgia district. He will now have to compete in a district that Sen. John McCainJohn McCainArmed Services chairman unveils .1B Asia-Pacific security bill Overnight Defense: Trump scolds NATO allies over spending | Flurry of leaks worries allies | Senators rip B Army 'debacle' | Lawmakers demand hearing on Saudi arms deal The case for protecting America's intelligence agency whistleblowers MORE (R-Ariz.) would have won by almost 10 points in the 2008 presidential election. And Capps will also be running in a district that has been substantially altered and made more competitive for Republicans.

There are at least five Republicans gunning for Garamendi’s seat, while Loebsack has been made a prime target by the National Republican Congressional Committee.

The five Democrats join 12 others who have already been named to the DCCC’s Frontline program, which parallel’s the NRCC’s Patriot program to protect Republican incumbents.

Noticeably still on the Democrats’ list is Rep. Gabrielle Giffords (D-Ariz.), who has yet to make a decision about pursuing another term in the House while she recovers from a January assassination attempt.