they're not very effective. but also, i have a problem with the government requiring people to do that. up to 70 conservatives may rebel against the government, arguing that these restrictions go too far. these votes will be judged as a test of borisjohnson�*s authority over his party too. a beleaguered prime minister who may well need labour mps to get his policy through. ben wright, bbc news, westminster. we'rejoined now by our chief political correspondent adam fleming. morning. it is a big day for the pm, isn't it? it looks like he will have to depend on labour to get its plans through. how difficult is that for him? ~ ., , ., through. how difficult is that for him? ., , ., , him? well, the real focus today is auoin to him? well, the real focus today is going to be _ him? well, the real focus today is going to be on _ him? well, the real focus today is going to be on this _ him? well, the real focus today is going to be on this measure - him? well, the real focus today is going to be on this measure for. going to be on this measure for introducing covid certificates for certain — introducing covid certificates for certain venues in england. the government is bending over backwards to make _ government is bending over backwards to make it_ government is bending over backwards to make it look less of a big thing that it _ to make it look less of a big thing that it might have been, so there are a _ that it might have been, so there are a lot — that it might have been, so there are a lot of— that it might have been, so there are a lot of exemptions for various venues _ are a lot of exemptions for various venues for— are a lot of exemptions for various venues. for example, charges won't have to— venues. for example, charges won't have to use— venues. for example, charges won't have to use it. you will be able to show _ have to use it. you will be able to show a _ have to use it. you will be able to show a negative test rather than