PARIS (Reuters) -France’s Emmanuel Macron was sworn in for his second term as president on Saturday, promising to lead the country with a “new method” as his political rivals kicked off campaigning for next month’s legislative elections. In a country where presidents rarely get re-elected, Macron won 58.5% of the votes in the second round against the far-right’s Marine Le Pen, despite strong opposition to his pro-business policies and a proposal to raise the retirement age. In a short speech, he spoke of the need to innovate at a time of unprecedented challenges for the world and for France, a…