UK 2017 General Election - Conservatives May and Hammond economic press conference

The speaker outlines a leadership test and the publication of a manifesto addressing five major national challenges. Criticism is directed at Jeremy Corbyn for his unrealistic promises and lack of leadership. The speaker emphasizes the importance of confronting challenges directly and questions Corbyn's ability to lead the country through Brexit negotiations.

What does the speaker mean by 'ideological comfort zone' in relation to Labour?

In what way does the speaker plan to tackle the challenges head on?