and the reason is that donald trump was an an asthma to all the principles joe lieberman holds dear. william: senator richard blumenthal of connecticut, thank you so much for being here. sen. blumenthal: thank you. ♪ william: the on again, off again diplomatic relations between the u.s. and cuba have made it much harder for cuban musicians to travel to the u.s for this summer's music festivals. special correspondent mike cerre reports from havana, for our arts and culture series, canvas. mike: since the broad-based success of the 1999 buena vista social club film and album celebrating cuban musicians. ♪ there has been a succession of virtuoso cuban musicians, like roberto fonseca who have regularly played major music festivals and venues throughout the u.s. >> united states is a great and important, platform for young musicians. mike: but changes in u.s. visa procedures are making it more difficult for this current generation of cuban musicians like rodrigo garcia ameneiros and his wife tania haase solarzano. they've spent much of the past year trying to get visas to play at fest