President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Tuesday pitched his case for Republicans in the upcoming midterm elections, suggesting that the only reason to vote for a Democrat is "if you're tired of winning."

THE ONLY REASON TO VOTE FOR A DEMOCRAT IS IF YOU’RE TIRED OF WINNING! — Donald J. Trump (@realDonaldTrump) October 2, 2018

Trump issued the all-caps message shortly before departing for an event in Philadelphia.

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The president this week will make three separate trips to stump for Republican candidates. He traveled to Tennessee on Monday in support of Rep. Marsha Blackburn Marsha BlackburnTaylor Swift on National Voter Registration Day: 'We need everyone' Democrats smell blood with new DHS whistleblower complaint Hillicon Valley: Election officials prepare for new Russian interference battle | 'Markeyverse' of online fans helps take down a Kennedy | GOP senators unveil bill to update tech liability protections MORE (R), who is in the midst of a a close race against former Gov. Phil Bredesen.

On Tuesday, Trump will head to Mississippi in support of Sen. Cindy Hyde-Smith (R) for a rally that was canceled last month amid Hurricane Florence.

Hyde-Smith is hoping to retain the Senate she seat she was appointed to in April after Thad Cochran resigned. She is facing a challenge from two Democrats and Republican Chris McDaniel in a special election in November.

On Thursday, Trump will be in Minnesota, a state he narrowly lost in the 2016 election. Republicans are hoping to win key House races in the state and to defeat Sen. Tina Smith Tina Flint SmithThe Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins GOP Senate candidate says Trump, Republicans will surprise in Minnesota Biden promises Democratic senators help in battleground states MORE (D).

This week's rallies follow a Saturday appearance in West Virginia, where Trump stumped for Patrick Morrisey, who is hoping to defeat vulnerable incumbent Sen. Joe Manchin Joseph (Joe) ManchinThe Hill's Morning Report - Sponsored by Facebook - Trump, GOP allies prepare for SCOTUS nomination this week Trump meets with potential Supreme Court pick Amy Coney Barrett at White House Names to watch as Trump picks Ginsburg replacement on Supreme Court MORE (D-W.Va.).

Trump has frequently criticized Democrats as "obstructionists" and called for voters to elect more Republicans to enact his agenda. He has in recent weeks grown more visible on the campaign trail as the midterm campaign enters its final month.

While Trump has insisted a "red wave" is possible, Democrats are seeking to re-take control of the House and Senate and hold a 7.4 percentage point lead on the generic congressional ballot, according to a RealClearPolitics average of polls.

Democrats need to win 23 seats to win back the majority in the House, and need to pick up two seats to do the same in the Senate.