In some crucial battleground states Biden outspent Trump. In Wisconsin, Biden spent $9.2 million to Trump’s $1.5 million; in Florida, Biden spent $23.2 million to Trump’s $6.4 million; in Arizona, Biden spent $10 million compared to $1.4 million by Trump, and in North Carolina, Biden spent $11.5 million to Trump’s $3.7 million.

Georgia was one state where the Trump campaign outspent Biden — $2.7 million to $1.3 million.

In that same period, the Trump campaign stopped running ads in Michigan and Pennsylvania, two battleground states where Trump currently trails Biden by about 4 percentage points, according to RealClearPolitics. Biden booked $8.5 million in Michigan and nearly $16.8 million in Pennsylvania.

“They are in a cash crunch. It’s obvious by looking at these numbers,” said Republican strategist Bryan Lanza, deputy communications director for Trump’s 2016 campaign. “As with any campaign, you adapt to the environment. They can’t cut from payroll, they can’t cut from operating so they’ve got to cut from TV. That’s not killer, but it’s a problem. You always want to have a strategic advantage when you’re competing against anybody and when you lose it, that’s a problem.”