"Barbara Comstock is a solid and reliable conservative," said the conservative commentator.
The Citizens United survey shows the GOP delegate taking 44 percent of the primary vote.
Virginia Del. Bob Marshall (R) will join the crowded Northern Virginia race for Congress.
Rob Wasinger (R) has resigned as chief of staff for Rep. Kerry Bentivolio (R-Mich.).
Virginia Del. Barbara Comstock (R) has quickly amassed a strong war chest.
Del. Bob Marshall and former Senate candidate Howie Lind could complicate Comstock's chances.
Comstock is looking like more of a lock for the GOP nomination.
Sen. Black's decision potentially clears the way for Virginia Del. Barbara Comstock (R).
Calling themselves the "Wolf Pack, current and former staffers praise Comstock for Congress.
Tim Phillips is endorsing Comstock to succeed retiring Rep. Frank Wolf (R-Va.).
The group calls Comstock "the future of the conservative movement."
Levin says he won't be the only conservative backing Comstock in Virginia.
The Va. delegate could face a conservative challenger in trying to succeed her former boss.