First and foremost, that is voting in your own best interests (see also, the book: Bulls, Bears and the Ballot Box).
Furthermore, let Republicans tell you:
Senator James Lankford (R-OK) was censured by the OK Republican Party for his role in bipartisan border policy negotiations. Republicans had been demanding changes in (Mexican) border policy for years, and Senator Lankford sat on a committee that has just negotiated a bill that gives the Republicans almost everything that they had asked for, and was punished for presenting these favorable results during the Biden (Democratic) administration; in an election year.
The horror!
Representative Chip Roy (R-TX) requested, while speaking on the House floor, that any of his fellow Republicans, “give me one thing (that we've accomplished), one, that I can go campaign on, and say we did.”
Nobody could; nobody did.
Meanwhile, back in Texas: Republicans are planning to defy a Supreme Court ruling against activity that Gov. Abbott ordered, and multiple state agencies did, on the (Mexican) border.
The previous President recently was adjudicated to owe over $83 million dollars to E. Jean Carroll for defaming her after being convicted of her rape. That same former president still has 91 felony indictments against him.
This is the Republican party, in it's own words and deeds.
If this isn't enough reason to vote for Democrats, try this on for size: the Infrastructure Act; the Inflation Reduction Act; the Chips Act, etc... These bills were all passed into law during the first two years of the Biden administration. Monopoly and Anti-Trust Action by the FTC and DOJ continue to make progress during this administration.
The economy has experienced record growth and unemployment is at historic lows during this, Biden, administration.
Your vote matters.
How can you tell?
In states with Republican majorities in the legislature, and Republican Governors, they are doing everything they can get away with to reduce voting rights.
Register. Vote. Communicate with your elected officials.