CNN The Lead w/ Jake Tapper

Sen. Harris jumps to double-digit support in new CNN poll ; New CNN poll finds record voter enthusiasm for 2020 race; New CNN poll shows more Republicans are enthusiastic about voting in 2020 than Dems ; Sen. Warren calls for ending electoral college; Trump: I was never a fan of McCain and never will be; Trump attacks Kellyanne Conway's husband: "total loser!"; Trump: "proud" to hear Brazil's president say "fake news"; New docs show Mueller began investigating Cohen in July of 2017, nearly a year before 2018 FBI raid; Materials related to campaign finance violations redacted; New docs show Mueller given access to years of Cohen emails while working under Trump; Fired U.S. Atty talks new book, Cohen & Mueller report; Rep Nunes sues over parody tweets including fake cow account; Rep. Nunes sues Twitter for $250M, Twitter has denied political bias; Trump: some social media companies are involved in "collusion"; Deputy AG Rosenstein staying at DOJ longer than planned; Trump: some social media companies are involved in "collusion"; A rare look at the Trump 2020 re-election effort

New CNN poll: Trump's job approval ticks up to 42%; Conservative lawyer & husband of Kellyanne Conway questions Trump's mental state after stunning tweetstorm; Sen. Graham praises McCain's service but doesn't call out Pres. Trump for attacking the late Senator; Mulvaney: President Trump is not a white supremacist; Biden readies major endorsements ahead of 2020 announcement; Warren, Sanders fight to stand out despite similar messages; Warren: "I am a capitalist," but I don't believe in "theft"; CNN poll: 11% support breaking up tech giants; MD Gov. Hogan: "I thought it would be fun" to visit Iowa; In wake of tragedy, New Zealand gov't vows to announce plan within 10 days for gun law reform

Any moment: mosque massacre suspect to appear in court; 49 killed in mosque mass shootings, suspect to appear in court; Trump signs first veto to stop Congress from blocking his national emergency; Gunman live-streamed terror attack at mosques; Trump on rising white nationalism: "I think it's a small group of people."; Shooting suspect posted killing spree on social media platforms; Killing suspect praised prior white supremacist killers; Terror suspect believed to have posted 87-page document filled with anti-immigrant and anti-Muslim rhetoric; At least 49 dead in terror attack at New Zealand mosques

Trump expected to issue first veto of presidency after Republican Senate blocks his emergency order; Schumer intends to bring up resolution rejecting Trump's emergency again; Sources: Trump sees emergency vote as a loyalty test; O'Rourke visits Iowa, takes on Trump in first campaign stops; O'Rourke's website: shop, donate, but no policies; O'Rourke offers few specifics during first campaign stops; Schultz apologizes for saying he spent more time with military than his opponents, 2 are veterans; Trial of Trump confidant Roger Stone set for November; Top prosecutor leaving special counsel's office; another sign Russia probe wrapping up; House votes unanimously for public release of Mueller report; Graham blocks Senate vote for Mueller report to be made public; Schiff: Trump possibly dangling pardons is part of investigation; Judge rules "Apprentice" star's case can move forward; "Tricky Dick" premieres Sunday at 9p ET/PT

Trump: I have not given pardon to Manafort a thought; Trump follows the lead of other nations, grounds Boeing 737 Max 8 planes over U.S. skies; Trump warns defecting Republicans: "that's a bad vote"; Paul Ryan backtracks on whether Trump will be re-elected; Schultz says he would only sign bipartisan legislation