Outpourings of condolences have flowed since early this morning, after veteran Sen. Edward Kennedy (D-Mass.) succumbed to brain cancer at the age of 77.

Many lawmakers and politicos have taken to Twitter to remember the "Liberal Lion" of the Senate.

Admiral Mike Mullen, the chairman of the Joint Chiefs of Staff, tweeted:
Woke up in Boston to news of Sen. Kennedy's passing. My deepest condolences, on behalf of all of us in uniform, go out to his family.:

Sen. Mark WarnerMark WarnerLive coverage: Trump budget chief faces two Senate panels Obama's last law: Talent Act will enhance government efficiency GOP, Dems hear different things from Trump MORE (D-Va.) tweeted:
I didn't know Sen. Kennedy well, but his public service and legacy is an inspiration for all of us in the Senate.

The National Senatorial Campaign Committee said tweeted:
We join millions of people in Massachusetts and across the U.S. in remembering the public service, and life of Senator Ted Kennedy.

Sen. Bill NelsonBill NelsonSenate panel approves slew of tech bills Dems unveil infrastructure plan, reach out to Trump Schumer to Trump: Work with Democrats on infrastructure bill MORE (D-Fla.) said via Twitter:
Most Americans cannot even remember a time without Ted Kennedy.

Whatever your political views, his lion-like conviction was respected. It was that conviction that gave a voice to the powerless.

Grace and I came to know Ted and Vicki in his later years in the Senate, and we count it a privilege to have known him.

Buffalo Bills wide receiver Terrell Owens tweeted:
R.I.P. Sen. Ted Kennedy

Former Saturday Night Live star Kevin Nealon tweeted:
Ted always weathered the storms. Thank you for your years of public service, sir.

Meghan McCain, daughter of Sen. John McCainJohn McCainMcCain questions Trump budget pick's support for military Why the era of US global leadership is over McCain 'seriously considering' issue of military base closures MORE (R-Ariz.), said via Twitter:
I just heard about Sen. Kennedy, it is so incredibly sad especially given that my memories of him are that of a politician who reached

across party lines. something that is painfully missing in todays politics. I remember his voice more than anything the times we met

being larger than life and booming. My thoughts and prayers to his family.

I fear politics without politicians that reach across party lines when it is necessary and important. Anyone that want's to know why Sen.

Kennedy is such an American legend. Read his speech at the 1980 convention after conceding to Jimmy Carter.

Rep. Lee Terry (R-Neb.) said via Twitter:
My condolences go out to the family of Ted Kennedy. My colleague will be missed.