washington u.s. president donald trump lunch republican senators argue return consider legislation repeal replace obamacare instead vote straight repeal senator ron johnson say president strongly argue johnson tell reporters return capitol lunch white house johnson say think senate leadership would like see happen well senate majority leader mitch mcconnell pull bill repeal replace obamacare consideration late monday fail gather enough support say chamber would vote straight repeal instead next week however straight repeal proposal gather enough vote either senator johnson trump argue repeal replace obamacare