The Opposition leader will appear alongside ex-Conservative Dr Dan Poulter as he highlights how a Labour government would overhaul mental health care if his party wins the next election.
Ahead of next week's local elections, Sam Coates writes that, despite the Conservatives being resigned to significant losses, it is Labour who could have the tougher time.
Two of Westminster's best-connected journalists, Sky News's Sam Coates and Politico's Jack Blanchard, guide you through their top predictions for the next seven days in British politics.
The Alba party's only MSP Ash Regan is set to demand some of her rivals step aside - a demand that will be point blank refused, a source close to Scotland's first minister tells Sky News.
Shadow health secretary Wes Streeting says Dr Dan Poulter's switch to Labour just days before the local elections is a sign of the "disaffection and disillusionment felt by millions".
The prime minister is pressed five times by Sky News' Trevor Phillips over the date after he repeats the vote will take place in the second half of the year.
The prime minister is pressed five times by Sky News' Trevor Phillips over the date after he repeats the vote will take place in the second half of the year.
Former health minister Dan Poulter said "chaos" in the NHS has led him to defect to Labour from the Conservative Party. The part-time GP said the Conservatives had become "a nationalist party of the right".