Venezuelan parliament on Thursday slammed the megalomaniac former US national security advisor following his brazen confession that he orchestrated government overthrows abroad, dubbing him "crazy".

A US delegation quietly arrived in Venezuela on Monday to discuss a "bilateral agenda" and to "maintain the conversations" that began in March, President Nicolas Maduro has confirmed.

Venezuela has rejected calls for dialog with the US-backed opposition as hypocritical as long as Washington maintains pressure on Caracas, including in the form of foreign asset freezes.