congressional caucus joins me live to discuss it all. mixed bag, president biden wins big in the democrat s first presidential primary in south carolina. but new nbc news polling numbers could be a sign of trouble to come. we ll break down the data with dnc chair jaime harrison. plus, my one-on-one conversation with california governor gavin newsom, and the real reason he thinks taylor swift has conspiratorial conservatives of freaking out. and, a surprise lol on snl. are you doing okay donald? you might need a mental competency test? you know what i did, i took the test, nascent okay, perfect score, they sent him 100 percent mental. i m jonathan capehart, this is the sunday show. we are monitoring breaking news on capitol hill, as we come on the air this evening. any moment now, we could learn the details of a bipartisan senate bill that includes aid to israel and ukraine, and concessions on security at the u.s. mexico border. excuse me, senate majority leader