Inside the Trump-endorsed marriage of Mike Pence, who calls his wife 'mother' and refuses to dine with other women

There's a quiet but powerful force at work in the White House.

Her name is Karen Pence.

The Second Lady's influence often goes unnoticed amidst the noisy exits and vicious power struggles that characterize the Trump White House.

But she is in fact the closest advisor to her husband, US Vice President Mike Pence - President Donald Trump's second-in-command.

Karen Pence has even been a focus in some recent controversies, like the couple's expensive decision to walk out of a NFL game over flag protests.

The Washington Post reports Karen Pence has often asserted that she never attempts to sway policy. However, her 32 year marriage to the former Indiana governor has been a major influence on him throughout his political career. Karen - who Mike Pence refers to as "Mother," according to the Rolling Stone's extensive profile - is a major player behind the scenes.

Here's a look inside the marriage of Mike and Karen Pence: