Kavanaugh was also non-committal when asked about a President's pardon power and also asked about hot-button issues like abortion and gun control.
Pressured by Democrats with Trump on their minds during Wednesday's grueling session, the judge insisted that he fully embraced the importance of judicial independence.
Cruz wasn't alone in asserting Kavanaugh had remained undamaged by Democrats; Jake Tapper of CNN opined, "In terms of the politics of this hearing, I don't think any Democrats as of yet have laid a glove on him, and [Kavanaugh has not] given any Republican and also those swing Democrats any reason not to vote for him".
Judge Brett Kavanuagh will appear before the Senate Judiciary Committee today for his third round of hearings concerning his nomination to the Supreme Court.
Kavanaugh said his opinion was based on Supreme Court precedent that indicated semi-automatic weapons are in common use. The Supreme Court has never answered that question, and it is among the most important at Kavanaugh's hearing since Trump could face a subpoena in special counsel Robert Mueller's Russian Federation investigation.
"No one is above the law in our system of justice", Kavanaugh said, describing the court's 1974 decision ordering President Richard Nixon to turn over White House tapes incriminating him in the coverup of the Watergate burglary as one of the four greatest Supreme Court decisions of all time, "a moment of judicial independence". Chuck Schumer, D-N.Y., if he had ever "come across memos from internal files of any Democratic members given to you or provided to you in any way" to which Kavanaugh responded that he had not. Cruz confidently asserted that the Democrats' antics were good for the country, as they revealed their impotence in mounting any rational argument to block Kavanaugh's path to the Supreme Court.
In a tweet in June, President Trump said he had "the absolute right to PARDON myself".
On abortion, Kavanaugh said the landmark 1973 Roe v. Wade decision has been affirmed "many times".
"Of course the violence in the schools is something we all detest and want to do something about", Kavanaugh said.More news: Two men sneak in self-made poster at McDonald’s for Asian representation
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In August, Grassley told reporters that the confirmation hearing would last a week at the least, adding that the confirmation process will take as long as his colleagues need.
For a second day, protesters interrupted proceedings before being removed by security personnel.
News photographers clicked pictures of Kavanaugh as he entered the hearing room. The hearing was disrupted by angry shouts from members of the public and lawmakers alike.
"Most of these people have said that they're going to vote no anyways", Grassley said.
Is Kavanaugh expected to get through? Majority Republicans have declined to seek the papers, and instead have gathered documents from his work as White House counsel to Bush. They can confirm Mr Kavanaugh if they stay united.
Strong Democratic opposition to Trump's nominee reflects the political stakes for both parties in advance of the November elections, Robert Mueller's investigation of Trump's 2016 campaign and the potentially pivotal role Kavanaugh could play in moving the court to the right.
Republicans hold a one-vote Senate majority.
He studied law at Yale and is a resident of the wealthy Washington suburb of Chevy Chase.
Kavanaugh also is likely to face questions about his views on investigating sitting presidents and the ongoing probe led by special counsel Robert Mueller into Russian meddling in the 2016 US presidential election.
Republicans also have released some but not all of the existing documents concerning Kavanaugh's two years as a lawyer in the White House Counsel's office prior to becoming staff secretary.
He also repeated that he was unaware of the sexual harassment claims that caused Alex Kozinski to retire past year as an appeals court judge.