After several days of hearings for Supreme Court Nominee Neil Gorsuch, Senate Democratic Leader Chuck Schumer announced plans to filibuster his nomination. Many Democrats remain frustrated by the Senate’s refusal to move forward on President Obama’s nominee Merrick Garland last year. Plus, Secretary of State Rex Tillerson is planning to skip a NATO meeting next month.

After being confirmed by the Senate, Rex Tillerson arrived a the State Department this week to begin shaping American foreign policy. Plus, inside Trump's White House, his campaign manager Kellyanne Conway is a key voice for the president. And Senate Democrats debate whether or not they should try to block the nomination of Neil Gorsuch to the Supreme Court.

The Obama administration announced new economic sanctions against Russia in response to the Kremlin's involvement in computer hacking meant to disrupt the presidential election. President-elect Trump said the U.S. should "get on with our lives." While Russia has not yet retaliated for the sanctions, Vladimir Putin may respond in the future.

U.S. intelligence agencies blame Russia for a series of hacks meant to undermine the presidential election. President Obama said the U.S. will respond in a yet-to-be-determined way. But President-elect Donald Trump still questions the intelligence assessment and the belief by some that Russian President Vladimir Putin directed the attacks to bolster Trump's campaign.

The presidential race got personal this week as Donald Trump and Hillary Clinton exchanged insults. In an attempt to reach out to minority voters, Trump labeled Clinton a "bigot," while she shot back with some of his own past controversial statements. The Republican nominee also "softened" his immigration proposals including his plan for mass deportation of undocumented immigrants.

Five police officers were killed in a sniper attack in Dallas during a protest following two police shootings of black men in Minnesota and Louisiana this week, and political leaders were once again trying to respond to the tragedy. But action in Congress remains unlikely. Plus, FBI Director James Comey recommended no charges for Hillary Clinton in use of a private email server.

Donald Trump surpassed the 1,237 delegates needed to clinch the Republican nomination. But can he unite the Republican Party behind him? Molly Ball of The Atlantic and Michael Scherer of TIME Magazine examine Trump’s tactics on the campaign trail, which include insulting Democrats and Republicans alike.

On the Webcast Extra, while some establishment Republicans have been hoping for a third-party candidate to emerge to challenge Donald Trump, the Libertarian Party meets this weekend to pick its nominee, who will be on the ballot in all 50 states. The leading candidate is one-time Republican Gov. Gary Johnson.

The State Department released another batch of Hillary Clinton’s emails and 150 were classified after the fact. After a meeting with RNC chairman Reince Priebus, Donald Trump signed an agreement pledging allegiance to the Republican party and seemingly forgoing a potential independent run. President Obama received the necessary votes to assure the Iran agreement survives GOP opposition

Over months of negotiations at the Iran nuclear talks, several key players are people you've never heard of including the head of the Atomic Energy Organization of Iran Ali Akbar Salehi. David Sanger explains the vital role he played. Plus, Indira Lakshmanan reports on the intense negotiations between Secretary of State John Kerry and his Iranian counterpart Javad Zarif.