Wisconsin Rep. Paul Ryan is emerging as the key congressional Republican in negotiating with Democrats to solve Washington’s two fiscal crises with a plan that only delays efforts to defund ObamaCare, not derail them.

Ryan, chairman of the House Budget Committee, is proposing a plan to increase the federal debt that is tied largely to simplifying the tax code, make enough changes to Medicare to offset cuts to domestic spending and defense programs and a solid promise from Senate Democrats and President Obama to continue talks about reopening the federal government.

Failure to increase the debt limit within roughly the next week would result in the country defaulting on its debt for the first time in history. The partial government shutdown started Oct. 1.