COURTESY BY: https://www.dawn.com/ WASHINGTON: Police used chemical irritants to disperse protesters from streets around the White House on Monday as President Donald Trump claimed Democrats had lost control over the “Black Lives Matter” movement. Thousands gathered in Washington this weekend to protest racism and alleged police brutality. The rallies began on Friday evening and continued till Monday morning, splitting into small groups and marching in the streets around the White House. Mostly, the protesters remained peaceful, standing in lines, chanting slogans and taunting police. But clashes with police were reported…