said in a statement.
If they won the House and Senate it would put them in a position to oppose the president's legislative agenda.
Democrats are leading in Orange and Osceola counties.
President Donald Trump and former President Barack Obama are coming to Florida in the final days of the 2018 campaign.
"There's a rather good opportunity in Tennessee, Nevada and Arizona and then the long shot, which would be catastrophe for the Republicans, would be Texas. That would be more shocking than Trump winning the 2016 election".
Wrapping up her Senate re-election bid, Democratic Sen.
The Republican party now has majority in both the Senate and the House and Trump and his team is leaving no stone unturned to campaign in favour of his Republican party.
There is also a danger the president could face impeachment proceedings if Democrats take a majority in Congress.
Will voters blame the President for the current level of anger in the country concerning hot-button political issues?
A handful of suburban districts are "looking more dicey for us, and we're having to pay a little more attention to those", said Casey Wheat, executive director of the Republican House committee.
Harris and Newsom will later rally in Costa Mesa for Democrat candidate and former Republican Harley Rouda, running in the 48thcongressional district to knock off 11-term Republican Rep. Dana Rohrabacher.