The Democratic front-runner for Pennsylvania governor, Tom Wolf, is spending $1 million a week on TV advertising.
A campaign finance report filed Friday showed the York businessman's campaign has spent nearly $13 million. He spent nearly half of that, about $6 million, in the five-week reporting period that ended Monday, including $5.3 million for TV air time and production costs.
Wolf has raised $14.5 million, including his own $10 million contribution.
The May 20 primary election will decide which of the four Democratic candidates will be the party's nominee against Republican Gov. Tom Corbett, who is unopposed.
Friday is the deadline for the last full campaign finance reports that the candidates will file before the primary.