We might need to go back to the thread about religion rather than the one about the general election, but I cannot accept that talking about the 'God of Abraham' excludes Jews and Muslims. Abraham never believed in Jesus, and without getting into the complexities of Christian theology, it is a shame that you are not prepared to at least share the label of Abrahamic with people who claim to be decendants of Abraham.
Jesus said (speaking to the Jews) - "Your father Abraham rejoiced to see my day: and he saw it, and was glad. Then said the Jews unto him, You are not yet fifty years old, and have you seen Abraham? Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am. Then took they up stones to cast at him: but Jesus hid himself, and went out of the temple, going through the midst of them, and so passed by."
Abraham trusted in a saviour from sin. Jesus said Abraham believed in Jesus. Christians trust in the God that Abraham trusted in. The Jews tried to kill Him, and don't trust in Him now.