Read the source of the illusion the Titanic was a luxurious steamship touted as indestructible but in 1912 on its made in portage hidden iceberg in the Atlantic Ocean insane what is the meaning of the illusion in the sentence below the politician staff decided it was time to get off the Titanic so they left the campaign I started looking for other jobs a boring or monopost project a large project face and failure

The meaning of the phrase "get off the Titanic" in this sentence is metaphorical and refers to the decision of the politician's staff to leave the campaign. It implies that they recognized the campaign was doomed to fail, just like the ill-fated Titanic. They decided to abandon the project and start looking for other employment opportunities.