Democrats secured key victories in battleground and red state races.
There are 16 races that ABC News rates as Tossup going into Election Day.
ABC News projects all three progressive congressional candidates endorsed by Mayor Mamdani during the Democratic primaries ...
Voters will decide Tuesday which party controls Congress for the final two years of President Donald Trump's term in office.
Democrats win back control of Congress and make historic firsts; young people help spark “blue wave” across the country.