Workflow on Multi-selct picklist field

I know this is probably simple, but I cannot figure it out:

I have a multi select picklist field, where I want a task to be created if one of the selections is equal to a certain name.  So far, what I have works if the name is the only selection, but if there are more than one selection including the one in the WF, it does not work.  So my question is how to do a "like" or "contains" instead of the "="

IfNull(PRE('<msplFI_Programs_ITAG>'),'Invalid')<>IfNull([<msplFI_Programs_ITAG>],'Invalid') AND FieldValue('<msplFI_Programs_ITAG>')="C US"