Hillary Clinton battled to contain renewed FBI focus on her emails Sunday as Donald Trump blitzed western states in the tightening race for the White House.

Nine days before the vote, the 69-year-old former secretary of state hit the campaign trail hard in the battleground state of Florida.

Clinton blazed through brunch at an Irish pub, an African-American Baptist church, a soul food restaurant, an early voting site and a rally at a gay nightclub.

Much of her two-day visit to the Sunshine State focused on encouraging early voting. Clinton says a record 200 million Americans have registered to vote, 20 million of whom have already done so.

But her campaign was jolted when FBI boss James Comey announced Friday that his agents are reviewing a newly discovered trove of emails, resurrecting an issue Clinton had hoped was behind her.

The nominee's response has been to hit out at Comey's move as "deeply troubling" and to rally supporters to get out and vote, turning the tables on Trump by branding him as unfit to lead the nation.

"When you're knocked down, what matters is whether you get up again," she told a packed LGBT rally at a gay nightclub in Wilton Manors, just outside Fort Lauderdale.

"With Donald, it's always Donald Trump first and everyone else last. He abuses his power, he games the system and doesn't care who is left holding the bag," she added.

Allegations Clinton put the United States at risk by using a private email server while secretary of state were thrust back into the spotlight Friday when Comey revealed a renewed FBI probe into the matter based on a previously unknown trove of emails.

Trump -- himself under fire for alleged sexual impropriety and facing misconduct allegations from 12 women -- has gleefully seized upon Comey's move in an attempt to offset his own trailing in most polls.

Law Broken?

The Republican campaigned hard Sunday, attending church in Las Vegas, before leading three rallies in Nevada, Colorado and Albuquerque, New Mexico, whipping up his support base against Clinton.

"We all know about Hillary's mounting legal troubles, that she has brought onto herself with her serial, wilful, purposeful and deliberate criminal conduct," he told the crowed in New Mexico.

"Hillary Clinton is not the victim, you the American people are the victims of this corrupt system in every single way and folks this is your last chance to save it," he said to chants of "lock her up."