Ad buy watch: As the polls turn, Romney, NRSC buy heavily in Nevada

As the debate polling fallout continues, national Republicans are re-investing in Nevada.

And as polls continue to show Danny Tarkanian up on Steven Horsford, the Democratic Congressional Campaign Committee also is funneling more money into the state.

Team Romney plunked down some signficant money in Reno and Vegas today and the National Republican Senatorial Committee did the same. The DCCC buy is in Vegas, where most of the district's population resides.

Is this a sign the GOP senses it can win the presidency, the Senate and two congressional races here, despite those registration gains by the Democrats (now above 121,000 voters more than Republicans in Clark County)?

I think so.