I’m sorry to inform you, but, having the most money doesn’t necessarily mean a win. Dave Brat of Virgina was outspent, and won the seat from Eric Cantor. I think Ted Cruz was also outspent and won his Senate Seat.
However, national does not equal Texas. Cruz has raised a boatload of money by normal measures, but he's badly trailing both Bush and Trump in this cycle. And his polling pretty much shows it.