Amy Held

Former President Barack Obama's tweet this summer in response to the deadly violence in Charlottesville, Va., was the most-liked among those on Twitter's most-retweeted list for 2017.

Updated at 5:15 a.m. ET on Monday

A noon Monday deadline for President Robert Mugabe to voluntarily step down has come and gone with no word whether the longtime strongman of Zimbabwe will comply. Parliament has promised to initiate impeachment proceedings to remove him.