As of Thursday afternoon, Booker was ahead of McGrath by a few thousand votes.
Democratic candidates lodged accusations of "voter suppression" over ballot issues.
State leaders allowed every resident to request an absentee ballot in an effort to maintain public health during the pandemic.
The Kentucky Exposition Center was the only polling place available for registered voters in the county which encompasses Louisville, a city with 600,000 residents.
There will only be one polling station in most Kentucky counties as state leaders push residents to vote by mail amid the coronavirus crisis.
"Based on the experience we've seen this primary season, cities that have dramatically reduced the number of places where people can go for in-person voting have had disastrous outcomes on Election Day," said Kristen Clarke, the president of the Lawyers' Committee for Civil Rights Under Law.
A new Civiqs poll found Charles Booker, the state's youngest Black lawmaker, surging past former fighter pilot Amy McGrath.
"There is a lot about this moment that none of us have seen in our lifetimes," one activist said.
Protesters have demanded that criminal charges be brought against the officers involved in Taylor's fatal shooting on March 13.
Attorney General Daniel Cameron said his office would not provide a specific timeline regarding the conclusion of its investigation into the police-involved shooting.
It is a change from a previous poll that showed Democrat Amy McGrath, a former Marine fighter pilot, narrowly ahead of the Republican Senate majority leader.
Several individuals called in to a county council's virtual public forum on police accountability to deliver racial, homophobic and anti-Semitic slurs.
According to the political ad tracker Medium Buying, McGrath has spent $3 million on television and radio advertising in the final week leading up to the June 23 primary. Booker, meanwhile, has run a 30-second ad that shows McGrath admitting that she wasn't present at recent demonstrations.
The removal of the statue came after an 11-1 vote by the Historic Properties Advisory Commission on Friday.
The confrontation between the Brandenburg residents and protesters at the site of the Confederate monument was peaceful.
Charles Booker, the youngest black lawmaker in the state, has been visible at the protests for the Black Lives Matter movement following the deaths of Kentucky residents Breonna Taylor and David McAtee.
"This is one of many critical steps on police reform that we've taken to create a more peaceful, just, compassionate and equitable community," Louisville Mayor Greg Fisher wrote on Thursday.
Liquor Barn apologized for the incident and said the employee responsible for turning the woman away and the store's general manager had been fired.
The Courier Journal said the state lawmaker had the "commitment and vision" needed to transform the state and country.
"What this shows is that after 35 years of Mitch McConnell's partisanship and dysfunction, Kentuckians are ready for change," a McGrath campaign representative told Newsweek.
Kentucky Governor Andy Beshear announced his administration will begin working to end health care inequalities in black communities, with the aim of providing coverage to "100 percent" of the state's African-American communities.
Mayor Greg Fischer said in a statement that he understands their actions and it does not change his appreciation for the police force.
Restaurant owner David McAtee was known for providing free food at neighborhood events for at least 15 years, according to one Kentucky local.
Governor Andy Beshear called for the release of video footage captured during a protest in Louisville, during which police shot at the crowd.
Democrat Mike Broihier, 57, is an outsider in the race for the Senate seat, which pits McConnell against the Democrat frontrunner Amy McGrath.
"After 35 years, Kentuckians are still waiting for the kinds of opportunities Mitch worked so hard to give himself," the Lincoln Project's Thursday advertisement states.
"Mitch is the king of the swamp. Mike is a farmer, educator, former small-town newspaper editor, and a former Marine officer. Who would you vote for?" Yang said in his endorsement of Mike Broihier.
Kentucky State officials condemn the act of hanging a dummy of Gov. Andy Beshear effigy during a Memorial Day weekend rally, as tempers run high due to coronavirus legislation.
"The sign was meant to grab a person's attention so that they could come in and say, 'You can't tell me what to do.' That was our point. We can't tell you what to do and neither can the government. They need to stand up for what they believe in," the station's owner, Chris Stavely, told Newsweek.
The 26-year-old EMT was sleeping inside her home when the police department entered to execute a search warrant for an individual connected to a narcotics investigation.