Error in conditional in foreach using ASP.Net MVC

Companions of Stack Overflow in Spanish, I have the following error when doing this conditional ViewBag.p.Where(n => n.Lider == nameliderin the loop foreach.

Here is part of my code:

<table class="table table-bordered">
    @foreach (var item in ViewBag.c)
    {
        var namelider = item.lider;
        <tr>
            <td>@item.nombres</td>
            <td>@item.lider</td>
            <td>@item.eje_funcional</td>
            @foreach(var peso in ViewBag.p.Where(n => n.Lider == namelider))
            {
                <td>@peso.Lider</td>
            }
        </tr>
    }
</table>

The error that appears to me is the following:

You cannot use a lambda expression as the argument of a dynamically dispatched operation without first converting it to an expression tree or delegate type.

I add controller queries:

ViewBag.c = (from p in db.Collaborators
             where p.grupo_lider == "NO"
             select p).ToList();

ViewBag.p = (from p in db.Objectives
             select p).ToList();

ViewBag.cal = (from p in db.CalificarColaboradors
               select p).ToList();