USA: Sanders supporters tape their mouths in protest for fair election

Supporters of Bernie Sanders protested outside Wells Fargo Arena in Philadelphia, Tuesday, after Hillary Clinton clinched the Democratic presidential nomination.
Some of the activists were seen with taped mouths in protest for a fair election and free speech.
Hillary Clinton became the first female Democratic presidential nominee after Bernie Sanders moved to suspend the Democratic National Convention's procedural rules in order to nominate his intraparty rival. Clinton secured 2,842 delegates during the roll call, with 2,382 votes needed to clinch the nomination.
The 2016 Democratic National Convention is held at the Philadelphia's Wells Fargo Center and is expected to welcome 4,765 Democratic delegates.