Scott Morrison's insistence that neither he nor his office influenced the distribution of grants under the $100 million "sports rorts" program has come under fresh scrutiny following revelations there were 136 emails on the subject between his office and that of then-sports minister Bridget McKenzie.

Labor said the emails, sent between October 17, 2018, and April 11, 2019, the day Mr Morrison called the Federal election, pointed to a much greater role by Mr Morrison's office in influencing the distribution of the grants than has been admitted.