By Andrew Chung (Reuters) -For two of the most powerful men in the United States, Donald Trump and John Roberts, it has been a delicate dance from the start. In 2015, the man who would become the chief executive of the United States assailed the integrity of its chief justice,

In a social media post, President Trump demanded the Supreme Court order lower court judges not to issue nationwide injunctions.

Here’s what to know about Chief Justice John Roberts and his complicated relationship with President Donald Trump.