President Obama, Vice President Joe Biden and socialist Sen. Bernie Sanders will all hit the campaign trail for Hillary Clinton next month.

All three men have run against Clinton in pursuit of their own White House dreams, but they will sing her praises in New Hampshire, Ohio and Pennsylvania in September.

Obama will campaign for Clinton in Philadelphia on Sept. 13. The president courted controversy on the campaign trail eight years ago for suggesting people living in small towns in Pennsylvania, "[G]et bitter, they cling to guns or religion or antipathy toward people who aren't like them or anti-immigrant sentiment or anti-trade sentiment as a way to explain their frustrations."

Biden will stump for Clinton near Cleveland, Ohio, on Sept. 1. The vice president is slated to talk about Clinton's economic vision for America and lay out the high stakes of the election, according to the Clinton campaign. When campaigning four years ago this August on a similar topic, Biden courted controversy for telling a crowd that Republicans and Wall Street would, "[P]ut y'all back in chains." And Sanders will reportedly campaign for Clinton in Manchester, N.H., on Labor Day. Sanders will address the New Hampshire AFL-CIO Labor Day breakfast for the third straight year according to the Boston Globe, and may boost the Granite State's Democratic governor, Maggie Hassan, in her bid against incumbent Republican Sen. Kelly Ayotte.

With 73 days remaining until the election, Clinton's team appears to be preparing a full-court press.