Two-term GOP Rep. Barbara Comstock (VA-10) is a tough, resilient campaigner who has persevered as the prosperous Northern Virginia suburbs have zoomed away from her party in the Trump era. In 2016, she won reelection by six points while Hillary Clinton carried the seat 52 percent to 42 percent. But in the current political environment, Comstock is the single most vulnerable Republican incumbent in the House.

Last Tuesday, Democratic strategists got what they wanted when state Sen. Jennifer Wexton comfortably won her primary, taking 42 percent to former State Department official Alison Friedman's 23 percent. Wexton, a former domestic violence prosecutor, is a proven vote-getter in Loudoun County, home to nearly half the 10th CD's residents (in 2016, Comstock was able to portray her opponent as a wealthy DC carpetbagger).

Meanwhile in the GOP primary, Comstock took an underwhelming 61 percent against conservative veteran and self-described inspirational speaker Shak Hill, who raised $245,000 and attacked Comstock for calling on Trump to step aside as the GOP nominee in fall 2016. Hill narrowly beat Comstock in the Shenandoah Valley, indicating weak

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