Why are House Republicans neglecting three hot races in Nevada?

The National Republican Congressional Committee finally joined its peers when it announced its first batch of fall TV ad reservations on Tuesday, making it the last of the four largest outside groups involved in House races to do so.

The NRCC's bookings total $42.2 million across 29 different media markets, which the committee says is intended to target 22 districts. As is typical for such announcements, though, the NRCC largely did not identify specific races.

In addition, a press release said the committee was reserving $45.7 million overall, though adding up the provided market-by-market figure only gets you to that lower $42.2 million number. (It's possible the difference is intended for digital advertising, which is reserved differently.)

To help match markets to districts, we've added this latest batch of reservations to Daily Kos Elections' continually updated tracker. All told, Republicans (including the NRCC and the Congressional Leadership Fund) have booked $183 million so far, while Democrats (that is, the Democratic Congressional Campaign Committee and the House Majority PAC) have reserved $163 million in TV time.