A new round of Fox News battleground polls shows a Republican trend in the fight for the U.S. Senate. The GOP candidates are helped by increased interest in the election among Republicans and pro-Donald Trump sentiment.

There’s been an uptick in GOP interest in all five states surveyed. Compared to early September, the number of Republicans feeling “extremely” interested in the upcoming election is up by 2 points in Arizona, up by 9 points in Indiana, up 8 points in both Missouri and North Dakota, and up 11 points in Tennessee. In each state, Republicans are now just as likely as Democrats to say they are extremely interested — erasing an edge Democrats had in several states last month.

The battle over Brett Kavanaugh’s confirmation to the U.S. Supreme Court might explain increased interest in the election among Republicans. And how incumbent Senate Democrats vote on Kavanaugh could tip tight races, especially in Missouri and North Dakota. Voting against his nomination hurts more than helps the Democrats in those states.

However, the races are far from settled.