Pennsylvania Rep. Patrick Meehan (PA-7) has announced his retirement from Congress at the end of this year. The four-term Republican has been under scrutiny in recent days after it became public that inappropriate behavior with an aide led to a settlement paid by Congress. Meehan was subsequently removed from his seat on the House Ethics Committee.

Meehan's path to reelection in November was further clouded this week as the Pennsylvania Supreme Court ordered the state's congressional district lines to be redrawn for the 2018 midterms. The Court found that the lines established by the General Assembly back in 2011 violated the state's constitution. If the decision survives appeal, Meehan's suburban Philadelphia district will likely be significantly altered. That district is among the most gerrymandered in the entire country.

Based on the retirement, Sabato's Crystal Ball has updated their rating from 'Leans Republican' to 'Toss-up'. It is likely that any acceptable redrawing of the district's borders will move the race in the Democrat's favor.

Meehan is the 46th current House member, and 32nd Republican, to forego reelection in 2018. See the full list of retirements, which now includes the 2016 margin of victory within the district for both the House and presidential races. In terms of those on the list, Pennsylvania's 7th district is one of six Republican-held districts that were won by Hillary Clinton in 2016. There were 23 such districts nationwide that year. Three of the retirements are in Democratic-held districts won by Donald Trump in 2016. There were only 12 such districts in 2016.

Visit our newly redesigned 2018 House Interactive Map to see these margins for any district in the country.