Can you give me a tl;dr on why the debt ceiling debate could put health insurance in jeopardy for millions?

Here is the article:

As Republicans and Democrats debate a plan to raise the nation’s debt ceiling, millions of Americans who rely on Medicaid for their health insurance have wound up in the crosshairs. 

Republicans and Democrats appear to be at a stalemate over a GOP proposal to tie eligibility for Medicaid, the government-funded health insurance program for low-income and disabled adults, to a certain number of hours worked each month. For Republicans, the plan is part of a decadeslong push to link federal assistance to work requirements, while Democrats say the move would unfairly strip people of their health coverage and push more Americans into poverty.

Under the Republican plan, included in a bill passed by the House last month, Medicaid recipients would have to document 80 hours a month of work, which at the federal minimum wage would amount to a minimum of $580 a month in income, or log hours doing community service or participating in a work training program. Recipients would lose their coverage if they don't meet the hourly or monthly income requirements for three consecutive months during the year. 

A number of groups would be exempt, including people under 19 years old or over 56, those who are going to school at least part-time or who are pregnant or deemed by a doctor to be physically or mentally “unfit for employment.” Also exempt from the work requirement would be people participating in a drug or alcohol program and those caring for a dependent child or an “incapacitated person.”
A major aspect of the debt ceiling debate concerns eligibility for Medicaid. Under the proposed plan, non-exempt recipients would have to either log eighty hours a month of work, log hours doing community service, or participate in a work training program. 