Sharing a letter on X, Joly wrote, "Over the past week, I have spoken with dozens of friends, colleagues and close advisors; many of whom have encouraged me to run for the leadership of the Liberal Party of Canada. While I know I am ready to become the first woman to lead the Liberal Party of Canada, I must also recognise that the current international situation, especially the unjustified threat of tariffs and other economic pressures from the President-elect of the United States, requires a firm and urgent response. This is happening now."