John McCain's campaign and the Republican National Committee plan to spend "upwards of $160 million" in the final weeks of the presidential race, according to a senior McCain adviser.
This will represent a massive counter-attack to combat Barack Obama's lopsided spending advantage to date.
The McCain adviser told FOX News that, while Obama is outspending them in all but two of 14 battleground states, "that will change over the last four weeks."
As national and battleground state polls show McCain trailing Obama consistently, McCain is urging voters not to count him out.
"In case you missed it, this is about the seventh or eighth time that pundits have said 'McCain's campaign is in trouble,'" he told Wisconsin voters Thursday. "We fooled them then and we will fool them again."