PM's husband also reveals her longstanding ambition to reach Number 10.
Party says it will pay for policy by raising private healthcare insurance tax - and wins praise from children's cancer charity.
35 of 100 wealthiest have given Conservatives financial support.
Invest in the NHS, put more police on the streets and get MPs out meeting people.
Labour is facing a fight to hold on to exiting MP's slim majority.
Just 9,000 diesel cars out of two million could be eligible for scrappage under new scheme.