I am making changes to five race ratings this week, two in the House and three in the Senate. Four of these changes benefit the Republican Party.

In the House, the race in Maine 2 moves from Lean D, favoring Emily Cain, to Likely R, favoring incumbent Rep. Bruce Poliquin. Polling by the Portland Press-Herald not only shows Poliquin with a healthy lead in this rural district, but also shows Donald Trump leading big there. It doesn’t look like this is shaping up as a good year for Democrats in northern Maine.

Also in the House, the race in New Hampshire 1 moves from Lean D to Likely D, as former Rep. Carol Shea-Porter has a big polling lead on embattled GOP Rep. Frank Guinta in their fourth race against each other.

The change in Maine 2 now adjusts Democrats’ expected House gains to +12.

On the Senate side, the Nevada Senate race moves from Lean D, favoring Catherine Cortez-Masto, to lean R, favoring Rep. Joe Heck. Heck has opened up a bit of a lead, and with Trump doing well in Nevada, it doesn’t look like the top of the ticket is going to be the kind of liability originally expected here.

Also, the race in Arizona moves from Lean R to Likely R as Sen. John McCain has opened up a sizable lead on Rep. Ann Kirkpatrick. The same is true in Florida, as Sen. Marco Rubio now has a clear lead on Rep. Patrick Murphy.

The change in the Nevada Senate race now adjusts the current projection to 50-50 in the U.S. Senate, reflecting a Democratic net gain of four seats.

For the full chart, click here.