Donald Trump has announced he is going to target states seen as Democratic strongholds in the last two days before the Election Day.
The Republican nominee will visit Pennsylvania, Michigan and also Minnesota, which has not gone Republican since 1972.
Donald Trump started off a four-state swing on November 5 in Florida, where rival Hillary Clinton also campaigned.
Hillary Clinton unveiled an advert to run in nearly a dozen states, set to the Katy Perry song, Roar.
Katy Perry will appear with Hillary Clinton later on Saturday at a rally in Philadelphia, Pennsylvania.
Opinion polls suggest Hillary Clinton is still ahead in key states.
However, the Democratic nominee has seen her lead slip following last week’s FBI announcement that it was looking into emails that may be connected to her use of a private email server while she was secretary of state.
A nationwide McClatchy-Marist opinion poll on November 5 gave Hillary Clinton a one point lead, compared to six in September.
A YouGov polling estimate on the same day gave the Democratic nominee a three-point lead.
Some 37 million early voters have already cast their ballots. Reports suggest many more Latino voters are turning out early in key states including Florida, Arizona and Nevada compared to past elections.
Analysts in Nevada say the Democrats appear to have taken a significant lead there because of the early ballots.
Donald Trump told a rally in Tampa, Florida: “We’re going into what they used to call Democrat strongholds, where we’re now either tied or leading. We’re going to Minnesota, which traditionally has not been Republican at all.”
Pennsylvania and Michigan are also both on Donald Trump’s agenda and they too have been tough states for Republicans. Republicans have not won them since 1988.
After Tampa, Donald Trump headed to Wilmington in North Carolina, where he was introduced by his wife, Melania.
Donald Trump turned his fire on the Affordable Care Act, also known as ObamaCare.
“Real change begins with immediately repealing and replacing Obamacare,” he said.
Hillary Clinton addressed a rally in a hoarse voice in Pembroke Pines in Florida, telling supporters: “I don’t think I need to tell you all of the wrong things about Donald Trump,” before cutting the speech short amid a downpour of rain.
Florida is an important state, particularly for Donald Trump, with many seeing it as a must-win. Candidates need 270 electoral college votes to win the presidency. Florida is worth 29.