If you define "Christian" to mean someone who follows the moral and ethical teachings of Jesus, as opposed to someone who professes belief in the theological doctrines about Jesus, sure.
So tell me, what is a nice Jewish person like you doing on a hate Christian thread?
Jefferson's quote: "a disciple of the doctrines of Jesus".
Jefferson did not exclude "theological doctrines" from this statement.
On March 4, 1805, President Jefferson offered a National Prayer for Peace: “Almighty God, Who has given us this good land for our heritage; We humbly beseech Thee that we may always prove ourselves a people mindful of Thy favor and glad to do Thy will. Bless our land with honorable ministry, sound learning and pure manners. Endow with Thy spirit of wisdom those to whom in Thy Name we entrust the authority of government, that there may be justice and peace at home, and that through obedience to Thy law, we may show forth Thy praise among the nations of the earth. In time of prosperity fill our hearts with thankfulness, and in the day of trouble, suffer not our trust in Thee to fail; all of which we ask through Jesus Christ our Lord, Amen.”