From a Washington Post story by Jenna Portnoy headlined “Rep. Jennifer Wexton will not seek reelection as diagnosis changes”:

Rep. Jennifer Wexton promised this spring to persevere as she revealed a Parkinson’s diagnosis that stilted her movements and slurred her speech, hurdles she hoped to overcome while serving a competitive Northern Virginia district.

But as Wexton, 55, failed to respond to treatments as hoped, this summer she found herself confronting a more serious diagnosis: progressive supranuclear palsy. Her instinct — the same thing that propelled her from the state Senate to Congress — was to fight.