Cruz raised $800,000 through Feb. 14. That's well below El Paso Rep. Beto O'Rourke's $2.3 million haul, according to the most recent federal report.

The Republican also spent more than he raised — nearly $1.2 million, while O'Rourke burned through roughly $2 million in his bid to unseat the powerhouse incumbent. 

Both face nominal competition in March 6 primaries and most nonpartisan handicappers view Cruz as the heavy favorite in his Senate re-election bid this fall. 

Though he trailed O'Rourke in this fundraising period, Cruz maintains the cash advantage heading into the primary election and closed the six-week period with about $6 million in his coffers, compared to O'Rourke's $4.9 million. The finance report is required ahead of the upcoming primary.