From the Washington Post:
Elizabeth Warren and Hillary Clinton will meet privately Friday morning, according to two knowledgeable Democrats. The sit-down, coming just hours after the Massachusetts senator formally endorsed the presumptive Democratic nominee, will fuel speculation about her prospects as a potential vice presidential pick.
The women have had several conversations over the past month, including one that lasted around half an hour, sources told The Washington Post. The conversations were broad and focused on large topics and issues, rather than the nitty-gritty of the campaign. Their staffs have been engaged in more tactical discussions.
The two women do not have a particularly deep relationship, but that could change as Clinton rallies Democrats around her in the wake of winning the Democratic nomination in recent days. There were three big endorsements that could have meaningfully helped Clinton wrap up the nomination battle: Warren, President Obama and Vice President Biden. Clinton secured all three on Thursday.