CNN Politics

Diplomatic relations between the U.S. and Russia began to unravel after Moscow said Saturday it had expelled two American diplomats and the U.S. revealed it had tossed two Russians in response to an attack on one of its personnel.

Former Alaska Gov. Sarah Palin says the Black Lives Matter movement is a "farce" and said Americans who hyphenate their racial backgrounds -- such as African-Americans and Asian-Americans -- "further divide our nation."

America is in mourning.

Following one of the most tense weeks between police and black communities in recent history, several prominent Republicans said most white Americans don't understand the challenges that come with being black in America.

A handful of African-American House Democrats on Thursday joined protests outside the Capitol as demonstrators gathered in the wake of two deadly police shootings of black men.

The State Department is reopening its investigation into Hillary Clinton's use of a private email server during her tenure as secretary of state.

Hillary Clinton pledged Friday to bring law enforcement and communities together to develop national guidelines on the use of force by police officers, days after two black men were killed by police officers.

Hillary Clinton on Friday called for the nation to come together in the aftermath of an ambush that killed five police officers in Dallas, Texas, Thursday night, warning that a series of recent shootings involving police "is deeply troubling and it should worry every single American."

Donald Trump's campaign is denying that the candidate wanted to meet with New York police officers Friday afternoon and hold a press conference at a midtown precinct in a show of support following the Dallas police ambush.

President Barack Obama on Friday called the shootings of police officers in Dallas "a vicious, despicable and calculated attack on law enforcement."

Politicians from Texas and around the country offered condolences and reactions to the shooting death of five Dallas police officers, with presumptive Republican presidential nominee Donald Trump decrying "the horrors we are all watching take place in our country."

Before the mass shooting of police officers and civilians in Dallas Thursday night, another threat to police played out that morning in Bristol, Tennessee, near the Virginia border, killing one woman and wounding three others, including a police officer.

Texas Lt. Gov. Dan Patrick said Friday that protesters who fled gunfire in Dallas were "hypocrites" because they wanted police to protect them despite their outrage over recent killings of black men by cops.

Florida Democratic Rep. Corrine Brown and her chief of staff were indicted Friday for their roles in a conspiracy and fraud scheme involving a fraudulent education charity, the Justice Department announced.

House Republican and Democratic leaders are exploring whether there's any common ground to address growing gun violence in the country, prompted by this week's shootings of African-American men by police officers and Thursday night's killings of five officers in Dallas.

Donald Trump loves being unpredictable -- it's a valuable card in any good negotiator's hands, he insists.

Former House Speaker Newt Gingrich said Friday that "normal, white Americans" don't understand "being black in America."

The chairman of Donald Trump's campaign in Virginia argued that Hillary Clinton is to blame for "essentially encouraging the murder" of five Dallas officers who were shot to death Thursday night.

Republican Rep. Mark Sanford said Donald Trump has a "callous disregard for details" that was on full display Thursday when the GOP presidential candidate told a private meeting of House Republicans he would fiercely defend articles of U.S. Constitution that don't exist.

Iran tried to acquire technology that could be used for a military nuclear program, calling into question whether it is living up to an international agreement intended to curb such an effort, according to Germany's domestic intelligence service.