By Jon Lees An MP has claimed he saw drug taking while attending the Randox Grand National. Conservative Sir Jake Berry made the allegations during an on-air discussion about the government’s new smoking ban. Rishi Sunak wants to raise the legal age at which cigarettes can be bought annually to try to phase out the habit. The proposal passed its first vote in parliament on Tuesday despite opposition from members of his own party. Those included Berry, the MP for Rossendale and Darwen, who outlined his views in an interview with Times Radio. Presenter John Pienaar argued that cigarettes were ha…