In his bid for governor, West Virginia billionaire businessman Jim Justice has spent more than $2 million before the May 10 Democratic primary.
In campaign finance filings tracking through April 24, Justice spent $2.1 million since his campaign started. He put almost $2 million of his money in the race and has raised $683,700.
Ex-U.S. Attorney Booth Goodwin has spent $302,100 and raised $367,600 in the race.
The third Democratic candidate, Senate Minority Leader Jeff Kessler, didn't immediately report fundraising numbers. Through late March, Kessler spent $140,500 and raised $213,800.
Reports are due by the end of Friday.
The winner faces Republican Senate President Bill Cole in November.
Cole's latest report wasn't yet available. Through late March, he spent $467,300 and raised $1.1 million.
All four are running TV ads.