britain has stepped significantly closer to leaving the european union. parliament has given its final approval to a crucial law that allows the government to trigger brexit. mps in the house of commons overturned amendments from the upper house, the lords, seeking guarantees on the rights of eu nationals in the uk, and on how much say parliament will have on the final terms of the brexit deal. this from our political correspondent chris mason. so, it was the final stage of the whole process of getting a law to give the british prime minister, theresa may, permission to say to brussels that the uk is going to leave the european union. now, you might think, well, that s a bit odd. didn t british people leave the european union almost a year ago, so why couldn t she have just done it anyway? well, there was a challenge in the courts, that decided that there had to be this law for the brexit process to start. that took place a couple of months ago. since then, the legislation ha