Some of the turbulence will test (but not break) the coalition, as specific policy disputes set flinty, small-state Tories against more tender-hearted, pro-European and environmentally minded Lib Dems.
The President can expect many more such pyrrhic victories now that his faithful lieutenant, John Bolton, has been forced to leave the Turtle Bay portfolio to the tender mercies of lowest-common-denominator-minded State Department diplomats like Under Secretary Nick Burns.