"The United States Senate [AND HOUSE ELECTIONS] elections will be held on November 3, 2020. Thirty-four of the 100 Senate seats are up for reelection."

[NOTE: ALL 435 HOUSE REPRESENTATIVES 

seats are ALSO up for reelection on November 3, 2020.]

"The GOP will have to defend more Senate seats than Democrats. As of now, there will be 22 Republican Senate seats on the line, while Democrats will only need to protect 12 seats."

"The winners of those seats will serve a six-year term from January 3, 2021, until January 3, 2027."

"Elections to the Senate are staggered over even years so that only about 1/3 of the Senate is up for reelection during any election."

"Below are the 34 Senate seats up for reelection in 2020 in alphabetical order by political party and state."

read all about it at:

https://www.worldpress.org/article.cfm/senate-seats-up-for-reelection-in-2020