Is there any mechanism to bring down this government and force new elections?
The Greens are the junior partners in the coalition Government and they conducted a mid-term review following a party conference last autumn. I genuinely thought they would reject Nama and precipitate a general election but they chose, instead, to go back into Government following some paltry concessions on fox hunting etc.
Now both parties know they will be devastated if they call an election any time soon and so are cli9nging on for dear life. Indeed the Minister, Eamonn Ryan, quoted in the Diary is a Green party Minister and leading apologist for the Government.
So the short answer is no, this Government will probably run its full term, after which Fianna Fail will no longer be the largest party, and the Greens will be obliterated. Frank's Home Page and Diary Index
after which Fianna Fail will no longer be the largest party,
I wouldn't be too sure of that, and it's not clear that the most likely party to take their place, Fine Gael, would be any better. They might be worse.