ISLAMABAD: Former US presidential candidate and senior Republican Senator John McCain is arriving today in the capital as part of ongoing efforts by the US and Pakistan to repair ties damaged by the Abbottabad raid on May 2. McCain, 75, is also a senior member of the US Senate’s Arms Services Committee, which has the power to approve or deny military assistance to Pakistan. He is the most senior US figure to visit Islamabad since Washington withheld $800 million in military assistance to Pakistan last month.