I think that was/is already a provision of the ACA. Perhaps not exactly what you’re suggesting - but they have been ‘kicked off’ their previous, employer based health plan.
From what I remember, the Repubs (negotiating in bad faith all along, btw) added something to the bill they thought would for sure stall the Dems - It was that all Congress people and their staff had to go off their Employer based insurance and get it via ‘the exchanges’. The Dems didn’t argue against it and I’m pretty sure that was part of the passed bill.
Congress and staff will still get employer (the Fed Govt) subsidies/contributions to their premiums at the rate they did before as if they were still on an employer plan. This was really done to retain staff members who might ditch their jobs for the private sector where employers usually subsidize employee insurance plans.
I think the reason we don’t hear about it is because their transition has been pretty seamless. I guarantee if even one GOP’er lost their doctor, something they needed, or had a premium explosion by going on ‘the exchanges’, they’d be all over FoxNews with it. But none of that happened.
Instead, they’re having to crack on with negative anecdotes about shit they heard from some unverified or easily debunked source.
ETA: Yep. Here’s an artice about Congress’s new situation: http://www.reuters.com/article/2013/08/07/us-usa-health-congress-idUSBRE9760YL20130807
