“I said bluntly that if the president were to follow Mr. Clifford's advice and if in the elections I were to vote, I would vote against the president.”

From the 2004 DNC

Referring to President Johnson's decision not to run for re-election
Unidentified press conference, 1968
Featured in Pat Paulsen for President (1968), part 2 of 6 http://www.youtube.com/watch?v=KbP0ufyax5A&feature=relmfu, 01:30 ff (10:30 ff in full program)

We are no longer waiting, we are acting."

at LCV Annual Gala https://www.lcv.org/article_category/blog/Speech

West Chester, Ohio campaign event,

Referring to Obama on telling a Springfield, Ohio audience booing at his mention of Romney's name, "No, no, no — don't boo, vote. Vote! Voting's the best revenge."
2012

"Address in Chicago at a dinner of the Democratic Party of Cook County (155)," (28 April 1961) http://www.jfklibrary.org/Research/Research-Aids/Ready-Reference/JFK-Quotations.aspx
1961

As quote in D. F. Murphy, Presidential Election, 1864 https://books.google.com/books?id=_SAQAAAAYAAJ. Proceedings of the National Union Convention (June 7-8, 1864) of the Republican party

Rep. Lou Barletta on Running for US Senate: It’s About Putting America First, Pennsylvania Workers First http://www.breitbart.com/big-government/2017/08/30/exclusive-rep-lou-barletta-on-running-for-us-senate-its-about-putting-america-first-pennsylvania-workers-first/ (August 30, 2017)

Remarks on voting rights (29 December 2003) http://www.clark04.com/speeches/024/

1860s, A Short Autobiography (1860)
Context: Mr. Lincoln's reasons for the opinion expressed by this vote were briefly that the President had sent General Taylor into an inhabited part of the country belonging to Mexico, and not to the United States, and thereby had provoked the first act of hostility, in fact the commencement of the war; that the place, being the country bordering on the east bank of the Rio Grande, was inhabited by native Mexicans born there under the Mexican Government, and had never submitted to, nor been conquered by, Texas or the United States, nor transferred to either by treaty; that although Texas claimed the Rio Grande as her boundary, Mexico had never recognized it, and neither Texas nor the United States had ever enforced it; that there was a broad desert between that and the country over which Texas had actual control; that the country where hostilities commenced, having once belonged to Mexico, must remain so until it was somehow legally transferred, which had never been done.
Mr. Lincoln thought the act of sending an armed force among the Mexicans was unnecessary, inasmuch as Mexico was in no way molesting or menacing the United States or the people thereof; and that it was unconstitutional, because the power of levying war is vested in Congress, and not in the President. He thought the principal motive for the act was to divert public attention from the surrender of "Fifty-four, forty, or fight" to Great Britain, on the Oregon boundary question.