Big-name surrogates have been sent, television ads are playing and Clinton is touring the state in advance of Tuesday's voting.
On Sunday, she dropped in at Louisville churches and had two get-out-the-vote rallies on her schedule.
"The world is more interconnected than ever before, and it's becoming more connected every day".
Democratic presidential candidate Hillary Clinton, who easily won Kentucky in the 2008 primary against President Obama, will have a tougher go this time around during Tuesday's primary in the Bluegrass State.
One obvious candidate who would fit the Sanders anti-Wall Street populist profile is Elizabeth Warren, the MA senator who's been in a Twitter war with Republican Donald Trump.
Sanders is campaigning in Kentucky and drawing huge crowds.
"It's a long-shot, but we can do it", Sanders said in a phone interview with Fox 12 Sunday.
Sanders told The Oregonian/OregonLive on Saturday that his agenda is one that Oregon residents "feel comfortable with" living in "one of the most progressive states" in the US.
Clinton got 48% of Democratic voters in the state, while Sanders got 33%, according to a Fox 12/OPB poll released last week. They've cast votes. They've done things. Clinton later said she misspoke, but the comment has drawn fire in mining communities.
"What I'm trying to tell blue-collar workers is, you know where Bill Clinton and Hillary Clinton stand", he said during the candidate's stop in Kentucky's largest city of Louisville on Sunday. She's also touting her plan for coal miners, including investments to create new jobs in infrastructure and repurposing mines and protecting miners' health insurance and retirement programs.
Recalling sunnier days of growth, low unemployment and budget surpluses under her husband, Hillary Clinton is telling Americans that Bill Clinton will be "in charge of revitalizing the economy" if she wins the White House.
Asked during a stop at a diner in Paducah, a city in southwestern Kentucky on Monday whether Bill would be part of her cabinet, she shook her head and said "No" - but she reasserted that he would be her ally in office.
The California Democrat made a similar statement to Politico: "I love Hillary Clinton, and I think she's going to be a great president... I am not talking to you about the timing of my endorsement..."
The group has been tight-lipped about the content of the spots and whether they will focus on the policy differences between Democrats and Mr. Trump - or, indeed, between him and his own party - or if they will bring out personal dirty laundry, for instance on his record with women. But Hillary Clinton is hoping voters, particularly in depressed places like West Virginia and Kentucky, remember the boom times of his administration.