Ted Cruz at an Oct. 22 rally with President Trump in Houston. Photo: Loren Elliott/Getty Images
Sen. Ted Cruz and Beto O'Rourke are officially running in the most expensive U.S. Senate race in history, as fundraising surpasses $100 million, per the Houston Chronicle. Before this cycle, $77 million was the highest cost of a Senate race.
The details: Although O'Rourke has raised $61 million as of Oct. 1 compared to Cruz's $40 million, recent public polling shows Cruz leading by a range of five to nine percentage points. And super PACs for both parties are expected to pour even more money into this race right before election day.