ukraine says it s taken out a top russian general. so who is really winning the war tonight? and a game changer, 14 patients all with cancer given the same drug and every single one in remission. let s go outfront. good evening, i m erin burnett, outfront tonight, momentum, a very small group of senators, two democrats and two republicans are meeting tonight, and apparently are on the cusp of something when it comes to an agreement on gun laws, an agreement that can get 60 votes in the senate they say, news from senator john cornern the republican in the group, chris murphy who is also in tonight s meeting telling cbs news my goal is to have an agreement by the end of this week. look, it s been years of nothing, decades of nothing, but it appears that some sort of momentum may be building in washington. a key red state senator says he s open to a number of pro poepzales including raising the age to buy a semi automatic to 21 and what may surprise one opened to a ban on as