Senate Democrats’ budget plan is coming under increasing criticism from Republicans, who say it effectively pats itself on the back twice for savings that were only achieved once — and even then, promises another $7.3 trillion in debt over the next decade.

The Democrats’ plan passed out of committee last week on a party-line vote. It serves as the party’s response to the Republican plan introduced in the House by Rep. Paul Ryan of Wisconsin.

Last week’s announcements were complemented by a fast-paced round of partisan crossfire. Republicans accused Democrats of ignoring the national debt. Democrats accused Republicans of wanting to gut entitlements to preserve tax rates for top earners.

But there was a major disconnect in the way each side was calculating its numbers.