Michelle Obama and Elizabeth Warren in blitz for Clinton

First lady Michelle Obama is hitting the campaign trail for Hillary Clinton. Photo / AP

A slew of big-name Democratic surrogates are preparing to hit the campaign trail for Hillary Clinton beginning this week, launching the campaign's final sprint before Election Day.

First lady Michelle Obama and Senator Elizabeth Warren of Massachusetts will return to the campaign trail for Clinton for the first time since the Democratic National Convention in Philadelphia in July.

And a host of others, including such celebrities as actors Tony Goldwyn and Don Cheadle and Broadway star Audra McDonald, will participate in events for Clinton.

The show of surrogate muscle comes after a months of relatively low-key campaigning from Clinton and her supporters. Much of Clinton's time in the past several weeks was spent raising millions at high-dollar fundraisers.

Yesterday, Senator Bernie Sanders of Vermont campaigned for Clinton for the first time since the convention, appearing in New Hampshire. And Vice-President Joe Biden returned to the campaign trail for several events on Clinton's behalf last week.

Warren will hold her first event on Friday in Philadelphia. Michelle Obama will hold her event for Clinton on September 17 in Northern Virginia. And the campaign previously announced that President Barack Obama will return to the campaign trail for Clinton on September 14.

"Now that we are past Labour Day, Democratic leaders are kicking it into high gear to make the case that Hillary Clinton has the ability to do the job of commander in chief and president on day one," Clinton spokesman Jesse Ferguson said.

"She appreciates their support. Many of these people know what it takes to do this job and see Hillary Clinton as the only candidate with the experience, qualifications and temperament needed.

"Not only does Donald Trump not have the support of any living former president of the United States or even the most recent GOP nominee for president, but many other prominent Republicans are conveniently absent from campaigning for him because they share the growing doubts about his candidacy," Ferguson added.

The roster of surrogates includes some who made their national debuts on the DNC stage. Anastasia Somoza, a disability-rights activist who spoke at the convention, will head out on the campaign trail this week. And later this month the "Mothers of the Movement," a group of African American women whose children were killed in gun violence or in encounters with police, will stump for Clinton.

Chelsea Clinton will return to the campaign trail this week, and Bill Clinton will continue his multi-state campaigning on his wife's behalf.