Courts said Boris Johnson’s decision on Thursday (7 July) to resign was "the right decision", and praised the prime minister for his record in Number 10.
More than 50 ministers have now resigned after chancellor Rishi Sunak and health secretary Sajid Javid fired the starting gun on Tuesday evening (5 July).
Like Courts, transport secretary Grant Shapps has remained in his post, although he is understood to have been among members of the cabinet who met with Johnson on Wednesday and urged him to resign.
"Against a profoundly difficult backdrop, the PM got the big calls right on Covid and led the world in supporting the Ukrainian people. For that he deserves credit," said Courts.
"My focus remains on serving the people of West Oxon and discharging my ministerial responsibilities: protecting passenger safety and working to ensure resilience as we approach a challenging summer. Transport cannot be put on hold while Westminster sorts itself out.
"The machinery of government must keep moving to provide the governance the public expects and our country deserves."
