(Reuters) – French President Emmanuel Macron is seen as securing a ruling majority in June’s parliamentary elections, a poll showed on Monday, if he manages to strike a broad centre-right alliance with smaller parties including the conservative Les Republicains. Macron’s camp in a poll by institute Harris Interactive is seen winning 326 to 366 seats, which would be an outright majority in the 577 seat National Assembly. The far-right camp is seen winning between 117 and 147 seats, the poll said, while the left-leaning parties together would reach between 73 and 93 seats. (Reporting by Tassilo …