Sen. Bernie Sanders, I-Vt., doubts a “blue wave” is coming in the November midterm elections that would bring the Democratic Party big gains in Congress.

“I know a lot of people talk about this blue wave and all that stuff, but I don’t believe it,” Sanders told Hill.TV in an interview that aired Monday.

Instead, he believes only a “handful of votes” will decide if Democrats can regain control of the House and the results on Election Day will be “very, very close.”

Democrats, who are favored to win, need to gain 23 seats to flip the House majority. They are seen as having less of a chance of taking back control of the Senate.

Sanders, who ran as a left-wing alternative to Hillary Clinton in the 2016 Democratic primary, has previously accused the Democratic Party of “misreading where the American people are at.”

“Establishment Democrats don’t generate excitement,” Sanders said in May.

[Also read: 'Blue wave' warning: Democrats poised to slash defense spending]