HARRISBURG — Spending in the Republican gubernatorial primary campaign passed $20 million, as the candidates headed into the final two weeks of the race with a little over $4 million in the bank, according to reports filed this week with the state elections office.

The reports show Scott Wagner spent $5 million in April, the most of the three Republican candidates who will appear on Tuesday’s primary ballot. Total spending by Wagner and the other two Republican candidates, Paul Mango and Laura Ellsworth, topped $7 million in April, most of it for TV ads.