Several updates on the House retirement front:

• Dave Reichert (WA-08) announced that this will be his final term. The seven-term Republican represents a swing district east of Seattle. While the incumbent easily won reelection last November, it is one of 23 GOP-held districts where Hillary Clinton beat Donald Trump. The retirement opens up a new targeting opportunity for Democrats in 2018, with the race rating moved from likely Republican to toss-up. 

• Colleen Hanabusa (HI-01) will forego another term in the House to challenge incumbent David Ige in next year's Democratic gubernatorial primary. This is Hanabusa's 2nd attempt at departing the House for higher office; she lost the Democratic U.S. Senate primary in 2014. Hawaii is one of the most Democratic states in the nation, and both the congressional and governor's races are seen as safe Democratic holds next November.

• President Trump plans to nominate Republican Jim Bridenstine (OK-01) to serve as NASA's next administrator. If confirmed, a special election would be held to fill the remainder of his term. Note that Bridenstine had previously indicated that this term, his third, would be his last. This is a safe Republican district.

• The president has nominated Republican Tom Marino (PA-10) to be the next drug czar. If confirmed, a special election would be held here to fill the remainder of his term.  This is also a safe Republican district.

The announcements by Reichert and Hanabusa bring to 23 the number of House members not seeking reelection in the 2018 midterms. The updated chart follows.